161246872 has 16 divisors (see below), whose sum is σ = 312091200. Its totient is φ = 78022560.

The previous prime is 161246867. The next prime is 161246879. The reversal of 161246872 is 278642161.

161246872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161246879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324847 + ... + 325342.

It is an arithmetic number, because the mean of its divisors is an integer number (19505700).

Almost surely, 2^161246872 is an apocalyptic number.

It is an amenable number.

161246872 is a deficient number, since it is larger than the sum of its proper divisors (150844328).

161246872 is a wasteful number, since it uses less digits than its factorization.

161246872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650226 (or 650222 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 161246872 is about 12698.3019337233. The cubic root of 161246872 is about 544.2900972196.

It can be divided in two parts, 1612 and 46872, that added together give a palindrome (48484).

The spelling of 161246872 in words is "one hundred sixty-one million, two hundred forty-six thousand, eight hundred seventy-two".