161411472 has 30 divisors (see below), whose sum is σ = 451728342. Its totient is φ = 53803776.

The previous prime is 161411443. The next prime is 161411473. The reversal of 161411472 is 274114161.

161411472 is a `hidden beast` number, since 1 + 614 + 1 + 1 + 47 + 2 = 666.

161411472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 153660816 + 7750656 = 12396^2 + 2784^2 .

It is not an unprimeable number, because it can be changed into a prime (161411473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560313 + ... + 560600.

Almost surely, 2^161411472 is an apocalyptic number.

161411472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161411472 is an abundant number, since it is smaller than the sum of its proper divisors (290316870).

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

161411472 is a wasteful number, since it uses less digits than its factorization.

161411472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120927 (or 1120918 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 161411472 is about 12704.7814621110. The cubic root of 161411472 is about 544.4752371064.

The spelling of 161411472 in words is "one hundred sixty-one million, four hundred eleven thousand, four hundred seventy-two".