1151563657 has 2 divisors, whose sum is σ = 1151563658. Its totient is φ = 1151563656.

The previous prime is 1151563579. The next prime is 1151563661. The reversal of 1151563657 is 7563651511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 880664976 + 270898681 = 29676^2 + 16459^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151563657 - 2¹⁵ = 1151530889 is a prime.

It is a super-2 number, since 2×1151563657² = 2652197712246427298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1151563667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575781828 + 575781829.

It is an arithmetic number, because the mean of its divisors is an integer number (575781829).

Almost surely, 2^1151563657 is an apocalyptic number.

It is an amenable number.

1151563657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151563657 is an equidigital number, since it uses as much as digits as its factorization.

1151563657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 40.

The square root of 1151563657 is about 33934.6969486984. The cubic root of 1151563657 is about 1048.1641865525.

The spelling of 1151563657 in words is "one billion, one hundred fifty-one million, five hundred sixty-three thousand, six hundred fifty-seven".