137492697 has 4 divisors (see below), whose sum is σ = 183323600. Its totient is φ = 91661796.

The previous prime is 137492671. The next prime is 137492699. The reversal of 137492697 is 796294731.

It is a happy number.

137492697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 137492697 - 2⁶ = 137492633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137492699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22915447 + ... + 22915452.

It is an arithmetic number, because the mean of its divisors is an integer number (45830900).

Almost surely, 2^137492697 is an apocalyptic number.

It is an amenable number.

137492697 is a deficient number, since it is larger than the sum of its proper divisors (45830903).

137492697 is an equidigital number, since it uses as much as digits as its factorization.

137492697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45830902.

The product of its digits is 571536, while the sum is 48.

The square root of 137492697 is about 11725.7279944573. The cubic root of 137492697 is about 516.1309196977.

The spelling of 137492697 in words is "one hundred thirty-seven million, four hundred ninety-two thousand, six hundred ninety-seven".