161724102 has 16 divisors (see below), whose sum is σ = 324259632. Its totient is φ = 53772800.

The previous prime is 161724071. The next prime is 161724103. The reversal of 161724102 is 201427161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161724103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31203 + ... + 36014.

It is an arithmetic number, because the mean of its divisors is an integer number (20266227).

Almost surely, 2^161724102 is an apocalyptic number.

161724102 is an abundant number, since it is smaller than the sum of its proper divisors (162535530).

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

161724102 is a wasteful number, since it uses less digits than its factorization.

161724102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67623.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 161724102 is about 12717.0791457787. The cubic root of 161724102 is about 544.8265329032.

The spelling of 161724102 in words is "one hundred sixty-one million, seven hundred twenty-four thousand, one hundred two".