102161670 has 128 divisors (see below), whose sum is σ = 294658560. Its totient is φ = 22394880.

The previous prime is 102161669. The next prime is 102161671. The reversal of 102161670 is 76161201.

It is an interprime number because it is at equal distance from previous prime (102161669) and next prime (102161671).

It is a self number, because there is not a number n which added to its sum of digits gives 102161670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102161671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125565 + ... + 126375.

It is an arithmetic number, because the mean of its divisors is an integer number (2302020).

Almost surely, 2^102161670 is an apocalyptic number.

102161670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102161670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147329280).

102161670 is an abundant number, since it is smaller than the sum of its proper divisors (192496890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102161670 is a wasteful number, since it uses less digits than its factorization.

102161670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 102161670 is about 10107.5056270081. The cubic root of 102161670 is about 467.4795972298.

It can be divided in two parts, 102161 and 670, that added together give a triangular number (102831 = T₄₅₃).

The spelling of 102161670 in words is "one hundred two million, one hundred sixty-one thousand, six hundred seventy".