1457158561 has 2 divisors, whose sum is σ = 1457158562. Its totient is φ = 1457158560.

The previous prime is 1457158559. The next prime is 1457158589. The reversal of 1457158561 is 1658517541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1361979025 + 95179536 = 36905^2 + 9756^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457158561 - 2¹ = 1457158559 is a prime.

It is a super-2 number, since 2×1457158561² = 4246622143791181442, which contains 22 as substring.

Together with 1457158559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1457158511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728579280 + 728579281.

It is an arithmetic number, because the mean of its divisors is an integer number (728579281).

Almost surely, 2^1457158561 is an apocalyptic number.

It is an amenable number.

1457158561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457158561 is an equidigital number, since it uses as much as digits as its factorization.

1457158561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 43.

The square root of 1457158561 is about 38172.7463119959. The cubic root of 1457158561 is about 1133.7107657455.

The spelling of 1457158561 in words is "one billion, four hundred fifty-seven million, one hundred fifty-eight thousand, five hundred sixty-one".