161269908 has 48 divisors (see below), whose sum is σ = 382003776. Its totient is φ = 52948480.

The previous prime is 161269883. The next prime is 161269919. The reversal of 161269908 is 809962161.

It is a self number, because there is not a number n which added to its sum of digits gives 161269908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271660 + ... + 272252.

It is an arithmetic number, because the mean of its divisors is an integer number (7958412).

Almost surely, 2^161269908 is an apocalyptic number.

It is an amenable number.

161269908 is an abundant number, since it is smaller than the sum of its proper divisors (220733868).

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

161269908 is a wasteful number, since it uses less digits than its factorization.

161269908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 161269908 is about 12699.2089517418. The cubic root of 161269908 is about 544.3160153857.

The spelling of 161269908 in words is "one hundred sixty-one million, two hundred sixty-nine thousand, nine hundred eight".