161052804 has 36 divisors (see below), whose sum is σ = 444116400. Its totient is φ = 48803760.

The previous prime is 161052803. The next prime is 161052809. The reversal of 161052804 is 408250161.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (161052803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202954 + ... + 203745.

Almost surely, 2^161052804 is an apocalyptic number.

It is an amenable number.

161052804 is an abundant number, since it is smaller than the sum of its proper divisors (283063596).

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

161052804 is a wasteful number, since it uses less digits than its factorization.

161052804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406720 (or 406715 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 161052804 is about 12690.6581389619. The cubic root of 161052804 is about 544.0716502007.

The spelling of 161052804 in words is "one hundred sixty-one million, fifty-two thousand, eight hundred four".