1500000156 has 18 divisors (see below), whose sum is σ = 3791667152. Its totient is φ = 500000040.

The previous prime is 1500000113. The next prime is 1500000167. The reversal of 1500000156 is 6510000051.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20833300 + ... + 20833371.

Almost surely, 2^1500000156 is an apocalyptic number.

It is an amenable number.

1500000156 is an abundant number, since it is smaller than the sum of its proper divisors (2291666996).

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

1500000156 is a wasteful number, since it uses less digits than its factorization.

1500000156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41666681 (or 41666676 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1500000156 is about 38729.8354760255. The cubic root of 1500000156 is about 1144.7142822368.

The spelling of 1500000156 in words is "one billion, five hundred million, one hundred fifty-six", and thus it is an aban number.