1500012156 has 12 divisors (see below), whose sum is σ = 3500028392. Its totient is φ = 500004048.

The previous prime is 1500012139. The next prime is 1500012167. The reversal of 1500012156 is 6512100051.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62500495 + ... + 62500518.

Almost surely, 2^1500012156 is an apocalyptic number.

It is an amenable number.

1500012156 is an abundant number, since it is smaller than the sum of its proper divisors (2000016236).

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

1500012156 is a wasteful number, since it uses less digits than its factorization.

1500012156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125001020 (or 125001018 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1500012156 is about 38729.9903950414. The cubic root of 1500012156 is about 1144.7173347997.

The spelling of 1500012156 in words is "one billion, five hundred million, twelve thousand, one hundred fifty-six".