151636456 has 8 divisors (see below), whose sum is σ = 284318370. Its totient is φ = 75818224.

The previous prime is 151636453. The next prime is 151636489. The reversal of 151636456 is 654636151.

It can be written as a sum of positive squares in only one way, i.e., 116424100 + 35212356 = 10790^2 + 5934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×151636456² = 45987229576479872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151636453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9477271 + ... + 9477286.

Almost surely, 2^151636456 is an apocalyptic number.

It is an amenable number.

151636456 is a deficient number, since it is larger than the sum of its proper divisors (132681914).

151636456 is a wasteful number, since it uses less digits than its factorization.

151636456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18954563 (or 18954559 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 151636456 is about 12314.0755235625. The cubic root of 151636456 is about 533.2545157832.

The spelling of 151636456 in words is "one hundred fifty-one million, six hundred thirty-six thousand, four hundred fifty-six".