1539272136 has 16 divisors (see below), whose sum is σ = 3848180400. Its totient is φ = 513090704.

The previous prime is 1539272027. The next prime is 1539272149. The reversal of 1539272136 is 6312729351.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1539272094 and 1539272103.

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, 32068146 + ... + 32068193.

It is an arithmetic number, because the mean of its divisors is an integer number (240511275).

Almost surely, 2^1539272136 is an apocalyptic number.

It is an amenable number.

1539272136 is an abundant number, since it is smaller than the sum of its proper divisors (2308908264).

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

1539272136 is a wasteful number, since it uses less digits than its factorization.

1539272136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64136348 (or 64136344 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 1539272136 is about 39233.5587985592. The cubic root of 1539272136 is about 1154.6183870750.

The spelling of 1539272136 in words is "one billion, five hundred thirty-nine million, two hundred seventy-two thousand, one hundred thirty-six".