2157015124 has 24 divisors (see below), whose sum is σ = 4122064800. Its totient is φ = 979478880.

The previous prime is 2157015121. The next prime is 2157015137. The reversal of 2157015124 is 4215107512.

It is a junction number, because it is equal to n+sod(n) for n = 2157015092 and 2157015101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157015121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20782 + ... + 68890.

It is an arithmetic number, because the mean of its divisors is an integer number (171752700).

Almost surely, 2^2157015124 is an apocalyptic number.

It is an amenable number.

2157015124 is a deficient number, since it is larger than the sum of its proper divisors (1965049676).

2157015124 is a wasteful number, since it uses less digits than its factorization.

2157015124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49143 (or 49141 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 2157015124 is about 46443.6769000905. The cubic root of 2157015124 is about 1292.0651024587.

The spelling of 2157015124 in words is "two billion, one hundred fifty-seven million, fifteen thousand, one hundred twenty-four".