1137745457 has 2 divisors, whose sum is σ = 1137745458. Its totient is φ = 1137745456.

The previous prime is 1137745423. The next prime is 1137745459. The reversal of 1137745457 is 7545477311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1076889856 + 60855601 = 32816^2 + 7801^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137745457 - 2⁸ = 1137745201 is a prime.

Together with 1137745459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1137745459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568872728 + 568872729.

It is an arithmetic number, because the mean of its divisors is an integer number (568872729).

Almost surely, 2^1137745457 is an apocalyptic number.

It is an amenable number.

1137745457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137745457 is an equidigital number, since it uses as much as digits as its factorization.

1137745457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 411600, while the sum is 44.

The square root of 1137745457 is about 33730.4826084656. The cubic root of 1137745457 is about 1043.9548189394.

The spelling of 1137745457 in words is "one billion, one hundred thirty-seven million, seven hundred forty-five thousand, four hundred fifty-seven".