162181434 has 32 divisors (see below), whose sum is σ = 335433600. Its totient is φ = 52235712.

The previous prime is 162181417. The next prime is 162181463. The reversal of 162181434 is 434181261.

162181434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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, 30627 + ... + 35529.

It is an arithmetic number, because the mean of its divisors is an integer number (10482300).

Almost surely, 2^162181434 is an apocalyptic number.

162181434 is an abundant number, since it is smaller than the sum of its proper divisors (173252166).

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

162181434 is a wasteful number, since it uses less digits than its factorization.

162181434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094.

The product of its digits is 4608, while the sum is 30.

The square root of 162181434 is about 12735.0474675205. The cubic root of 162181434 is about 545.3396126984.

The spelling of 162181434 in words is "one hundred sixty-two million, one hundred eighty-one thousand, four hundred thirty-four".