161427232 has 24 divisors (see below), whose sum is σ = 318099852. Its totient is φ = 80640000.

The previous prime is 161427197. The next prime is 161427283. The reversal of 161427232 is 232724161.

161427232 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 2 ways, for example, as 154853136 + 6574096 = 12444^2 + 2564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161427232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56232 + ... + 59032.

Almost surely, 2^161427232 is an apocalyptic number.

It is an amenable number.

161427232 is a deficient number, since it is larger than the sum of its proper divisors (156672620).

161427232 is a wasteful number, since it uses less digits than its factorization.

161427232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612 (or 4604 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 161427232 is about 12705.4016858972. The cubic root of 161427232 is about 544.4929571407.

The spelling of 161427232 in words is "one hundred sixty-one million, four hundred twenty-seven thousand, two hundred thirty-two".