133015128 has 32 divisors (see below), whose sum is σ = 336279600. Its totient is φ = 43839488.

The previous prime is 133015109. The next prime is 133015133. The reversal of 133015128 is 821510331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 133015098 and 133015107.

It is a congruent number.

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, 29001 + ... + 33272.

Almost surely, 2^133015128 is an apocalyptic number.

It is an amenable number.

133015128 is an abundant number, since it is smaller than the sum of its proper divisors (203264472).

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

133015128 is a wasteful number, since it uses less digits than its factorization.

133015128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62371 (or 62367 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 133015128 is about 11533.2184580021. The cubic root of 133015128 is about 510.4662249508.

Adding to 133015128 its reverse (821510331), we get a palindrome (954525459).

The spelling of 133015128 in words is "one hundred thirty-three million, fifteen thousand, one hundred twenty-eight".