161412040 has 32 divisors (see below), whose sum is σ = 374895360. Its totient is φ = 62481600.

The previous prime is 161412007. The next prime is 161412061. The reversal of 161412040 is 40214161.

It is a junction number, because it is equal to n+sod(n) for n = 161411999 and 161412017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63846 + ... + 66325.

It is an arithmetic number, because the mean of its divisors is an integer number (11715480).

Almost surely, 2^161412040 is an apocalyptic number.

161412040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161412040 is an abundant number, since it is smaller than the sum of its proper divisors (213483320).

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

161412040 is a wasteful number, since it uses less digits than its factorization.

161412040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130213 (or 130209 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 161412040 is about 12704.8038158800. The cubic root of 161412040 is about 544.4758757673.

It can be divided in two parts, 16141 and 2040, that added together give a palindrome (18181).

The spelling of 161412040 in words is "one hundred sixty-one million, four hundred twelve thousand, forty".