137431461 has 8 divisors (see below), whose sum is σ = 183305664. Its totient is φ = 91589120.

The previous prime is 137431433. The next prime is 137431471. The reversal of 137431461 is 164134731.

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 137431461 - 2⁵ = 137431429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137431421) 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, 5221 + ... + 17381.

It is an arithmetic number, because the mean of its divisors is an integer number (22913208).

Almost surely, 2^137431461 is an apocalyptic number.

It is an amenable number.

137431461 is a deficient number, since it is larger than the sum of its proper divisors (45874203).

137431461 is a wasteful number, since it uses less digits than its factorization.

137431461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15931.

The product of its digits is 6048, while the sum is 30.

The square root of 137431461 is about 11723.1165224952. The cubic root of 137431461 is about 516.0542841454.

The spelling of 137431461 in words is "one hundred thirty-seven million, four hundred thirty-one thousand, four hundred sixty-one".