2137977937 has 8 divisors (see below), whose sum is σ = 2169042120. Its totient is φ = 2106961920.

The previous prime is 2137977913. The next prime is 2137977979. The reversal of 2137977937 is 7397797312.

It can be written as a sum of positive squares in 4 ways, for example, as 567916561 + 1570061376 = 23831^2 + 39624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2137977937 - 2¹⁹ = 2137453649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137977637) 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, 82737 + ... + 105457.

It is an arithmetic number, because the mean of its divisors is an integer number (271130265).

Almost surely, 2^2137977937 is an apocalyptic number.

It is an amenable number.

2137977937 is a deficient number, since it is larger than the sum of its proper divisors (31064183).

2137977937 is a wasteful number, since it uses less digits than its factorization.

2137977937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24083.

The product of its digits is 3500658, while the sum is 55.

The square root of 2137977937 is about 46238.2735079934. The cubic root of 2137977937 is about 1288.2527347058.

The spelling of 2137977937 in words is "two billion, one hundred thirty-seven million, nine hundred seventy-seven thousand, nine hundred thirty-seven".