137371691 has 12 divisors (see below), whose sum is σ = 146514312. Its totient is φ = 128767104.

The previous prime is 137371669. The next prime is 137371693. The reversal of 137371691 is 196173731.

It is a happy number.

It is not a de Polignac number, because 137371691 - 2¹⁴ = 137355307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137371693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33056 + ... + 36978.

It is an arithmetic number, because the mean of its divisors is an integer number (12209526).

Almost surely, 2^137371691 is an apocalyptic number.

137371691 is a deficient number, since it is larger than the sum of its proper divisors (9142621).

137371691 is an equidigital number, since it uses as much as digits as its factorization.

137371691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058 (or 4039 counting only the distinct ones).

The product of its digits is 23814, while the sum is 38.

The square root of 137371691 is about 11720.5670084685. The cubic root of 137371691 is about 515.9794613042.

The spelling of 137371691 in words is "one hundred thirty-seven million, three hundred seventy-one thousand, six hundred ninety-one".