2137051512251 has 4 divisors (see below), whose sum is σ = 2151394140000. Its totient is φ = 2122708884504.

The previous prime is 2137051512241. The next prime is 2137051512263. The reversal of 2137051512251 is 1522151507312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2137051512251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137051512221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7171313651 + ... + 7171313948.

It is an arithmetic number, because the mean of its divisors is an integer number (537848535000).

Almost surely, 2^{2137051512251} is an apocalyptic number.

2137051512251 is a deficient number, since it is larger than the sum of its proper divisors (14342627749).

2137051512251 is a wasteful number, since it uses less digits than its factorization.

2137051512251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14342627748.

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 2137051512251 in words is "two trillion, one hundred thirty-seven billion, fifty-one million, five hundred twelve thousand, two hundred fifty-one".