137425631 has 8 divisors (see below), whose sum is σ = 157132800. Its totient is φ = 117737208.

The previous prime is 137425609. The next prime is 137425657. The reversal of 137425631 is 136524731.

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 137425631 - 2¹⁸ = 137163487 is a prime.

It is a super-2 number, since 2×137425631² = 37771608111496322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137425601) 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, 19070 + ... + 25268.

It is an arithmetic number, because the mean of its divisors is an integer number (19641600).

Almost surely, 2^137425631 is an apocalyptic number.

137425631 is a deficient number, since it is larger than the sum of its proper divisors (19707169).

137425631 is an equidigital number, since it uses as much as digits as its factorization.

137425631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373.

The product of its digits is 15120, while the sum is 32.

The square root of 137425631 is about 11722.8678658424. The cubic root of 137425631 is about 516.0469868376.

The spelling of 137425631 in words is "one hundred thirty-seven million, four hundred twenty-five thousand, six hundred thirty-one".