1457507531 has 2 divisors, whose sum is σ = 1457507532. Its totient is φ = 1457507530.

The previous prime is 1457507507. The next prime is 1457507551. The reversal of 1457507531 is 1357057541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457507531 is a prime.

It is a super-2 number, since 2×1457507531² = 4248656405843431922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1457507551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728753765 + 728753766.

It is an arithmetic number, because the mean of its divisors is an integer number (728753766).

Almost surely, 2^1457507531 is an apocalyptic number.

1457507531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457507531 is an equidigital number, since it uses as much as digits as its factorization.

1457507531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 1457507531 is about 38177.3169696353. The cubic root of 1457507531 is about 1133.8012613804.

The spelling of 1457507531 in words is "one billion, four hundred fifty-seven million, five hundred seven thousand, five hundred thirty-one".