137075891 has 2 divisors, whose sum is σ = 137075892. Its totient is φ = 137075890.

The previous prime is 137075867. The next prime is 137075951. The reversal of 137075891 is 198570731.

137075891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137075891 - 2²² = 132881587 is a prime.

It is not a weakly prime, because it can be changed into another prime (137075591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68537945 + 68537946.

It is an arithmetic number, because the mean of its divisors is an integer number (68537946).

Almost surely, 2^137075891 is an apocalyptic number.

137075891 is a deficient number, since it is larger than the sum of its proper divisors (1).

137075891 is an equidigital number, since it uses as much as digits as its factorization.

137075891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 137075891 is about 11707.9413647319. The cubic root of 137075891 is about 515.6088453880.

The spelling of 137075891 in words is "one hundred thirty-seven million, seventy-five thousand, eight hundred ninety-one".