137366531 has 2 divisors, whose sum is σ = 137366532. Its totient is φ = 137366530.

The previous prime is 137366519. The next prime is 137366563. The reversal of 137366531 is 135663731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137366531 - 2¹⁰ = 137365507 is a prime.

It is a super-2 number, since 2×137366531² = 37739127677947922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137366491 and 137366500.

It is not a weakly prime, because it can be changed into another prime (137366501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68683265 + 68683266.

It is an arithmetic number, because the mean of its divisors is an integer number (68683266).

Almost surely, 2^137366531 is an apocalyptic number.

137366531 is a deficient number, since it is larger than the sum of its proper divisors (1).

137366531 is an equidigital number, since it uses as much as digits as its factorization.

137366531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 35.

The square root of 137366531 is about 11720.3468805322. The cubic root of 137366531 is about 515.9730007607.

The spelling of 137366531 in words is "one hundred thirty-seven million, three hundred sixty-six thousand, five hundred thirty-one".