1337731457 has 2 divisors, whose sum is σ = 1337731458. Its totient is φ = 1337731456.

The previous prime is 1337731429. The next prime is 1337731463. The reversal of 1337731457 is 7541377331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831976336 + 505755121 = 28844^2 + 22489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1337731457 - 2¹² = 1337727361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1337731427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668865728 + 668865729.

It is an arithmetic number, because the mean of its divisors is an integer number (668865729).

Almost surely, 2^1337731457 is an apocalyptic number.

It is an amenable number.

1337731457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1337731457 is an equidigital number, since it uses as much as digits as its factorization.

1337731457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 41.

The square root of 1337731457 is about 36575.0113738875. The cubic root of 1337731457 is about 1101.8512784545.

The spelling of 1337731457 in words is "one billion, three hundred thirty-seven million, seven hundred thirty-one thousand, four hundred fifty-seven".