102101770 has 8 divisors (see below), whose sum is σ = 183783204. Its totient is φ = 40840704.

The previous prime is 102101749. The next prime is 102101789. The reversal of 102101770 is 77101201.

It can be written as a sum of positive squares in 2 ways, for example, as 97594641 + 4507129 = 9879^2 + 2123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5105079 + ... + 5105098.

Almost surely, 2^102101770 is an apocalyptic number.

102101770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102101770 is a deficient number, since it is larger than the sum of its proper divisors (81681434).

102101770 is a wasteful number, since it uses less digits than its factorization.

102101770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10210184.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 102101770 is about 10104.5420480099. The cubic root of 102101770 is about 467.3882142861.

Adding to 102101770 its reverse (77101201), we get a palindrome (179202971).

The spelling of 102101770 in words is "one hundred two million, one hundred one thousand, seven hundred seventy".