161588922 has 32 divisors (see below), whose sum is σ = 354170880. Its totient is φ = 48742320.

The previous prime is 161588887. The next prime is 161588923. The reversal of 161588922 is 229885161.

It is a happy number.

161588922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161588922² = 52221959426244168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161588923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9229 + ... + 20207.

It is an arithmetic number, because the mean of its divisors is an integer number (11067840).

Almost surely, 2^161588922 is an apocalyptic number.

161588922 is an abundant number, since it is smaller than the sum of its proper divisors (192581958).

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

161588922 is a wasteful number, since it uses less digits than its factorization.

161588922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11218.

The product of its digits is 69120, while the sum is 42.

The square root of 161588922 is about 12711.7631349864. The cubic root of 161588922 is about 544.6746895688.

The spelling of 161588922 in words is "one hundred sixty-one million, five hundred eighty-eight thousand, nine hundred twenty-two".