1512121156 has 48 divisors (see below), whose sum is σ = 3428306560. Its totient is φ = 566714880.

The previous prime is 1512121153. The next prime is 1512121157. The reversal of 1512121156 is 6511212151.

It is a self number, because there is not a number n which added to its sum of digits gives 1512121156.

It is not an unprimeable number, because it can be changed into a prime (1512121153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102405 + ... + 116236.

Almost surely, 2^1512121156 is an apocalyptic number.

It is an amenable number.

1512121156 is an abundant number, since it is smaller than the sum of its proper divisors (1916185404).

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

1512121156 is a wasteful number, since it uses less digits than its factorization.

1512121156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218684 (or 218682 counting only the distinct ones).

The product of its digits is 600, while the sum is 25.

The square root of 1512121156 is about 38886.0020572956. The cubic root of 1512121156 is about 1147.7893653381.

The spelling of 1512121156 in words is "one billion, five hundred twelve million, one hundred twenty-one thousand, one hundred fifty-six".