2137153725 has 144 divisors (see below), whose sum is σ = 4877009280. Its totient is φ = 870912000.

The previous prime is 2137153723. The next prime is 2137153771. The reversal of 2137153725 is 5273517312.

It is a happy number.

2137153725 is a `hidden beast` number, since 213 + 71 + 5 + 372 + 5 = 666.

It is not a de Polignac number, because 2137153725 - 2¹ = 2137153723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2137153725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137153723) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 506625 + ... + 510825.

It is an arithmetic number, because the mean of its divisors is an integer number (33868120).

Almost surely, 2^2137153725 is an apocalyptic number.

2137153725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2137153725 is an abundant number, since it is smaller than the sum of its proper divisors (2739855555).

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

2137153725 is a wasteful number, since it uses less digits than its factorization.

2137153725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260 (or 4252 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 2137153725 is about 46229.3599890805. The cubic root of 2137153725 is about 1288.0871686324.

The spelling of 2137153725 in words is "two billion, one hundred thirty-seven million, one hundred fifty-three thousand, seven hundred twenty-five".