137299457 has 2 divisors, whose sum is σ = 137299458. Its totient is φ = 137299456.

The previous prime is 137299451. The next prime is 137299493. The reversal of 137299457 is 754992731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90459121 + 46840336 = 9511^2 + 6844^2 .

It is a cyclic number.

It is not a de Polignac number, because 137299457 - 2⁴ = 137299441 is a prime.

It is a super-2 number, since 2×137299457² = 37702281784989698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137299451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68649728 + 68649729.

It is an arithmetic number, because the mean of its divisors is an integer number (68649729).

Almost surely, 2^137299457 is an apocalyptic number.

It is an amenable number.

137299457 is a deficient number, since it is larger than the sum of its proper divisors (1).

137299457 is an equidigital number, since it uses as much as digits as its factorization.

137299457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The square root of 137299457 is about 11717.4850970675. The cubic root of 137299457 is about 515.8890064833.

The spelling of 137299457 in words is "one hundred thirty-seven million, two hundred ninety-nine thousand, four hundred fifty-seven".