2137408531 has 2 divisors, whose sum is σ = 2137408532. Its totient is φ = 2137408530.

The previous prime is 2137408529. The next prime is 2137408549. The reversal of 2137408531 is 1358047312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2137408531 - 2¹ = 2137408529 is a prime.

It is a super-2 number, since 2×2137408531² = 9137030456783155922, which contains 22 as substring.

Together with 2137408529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2137408571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068704265 + 1068704266.

It is an arithmetic number, because the mean of its divisors is an integer number (1068704266).

Almost surely, 2^2137408531 is an apocalyptic number.

2137408531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137408531 is an equidigital number, since it uses as much as digits as its factorization.

2137408531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2137408531 is about 46232.1157962730. The cubic root of 2137408531 is about 1288.1383581019.

The spelling of 2137408531 in words is "two billion, one hundred thirty-seven million, four hundred eight thousand, five hundred thirty-one".