1150660557 has 6 divisors (see below), whose sum is σ = 1662065262. Its totient is φ = 767107032.

The previous prime is 1150660547. The next prime is 1150660661. The reversal of 1150660557 is 7550660511.

It can be written as a sum of positive squares in only one way, i.e., 1141696521 + 8964036 = 33789^2 + 2994^2 .

It is not a de Polignac number, because 1150660557 - 2⁷ = 1150660429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150660547) 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 in 5 ways as a sum of consecutive naturals, for example, 63925578 + ... + 63925595.

It is an arithmetic number, because the mean of its divisors is an integer number (277010877).

Almost surely, 2^1150660557 is an apocalyptic number.

It is an amenable number.

1150660557 is a deficient number, since it is larger than the sum of its proper divisors (511404705).

1150660557 is a wasteful number, since it uses less digits than its factorization.

1150660557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127851179 (or 127851176 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 1150660557 is about 33921.3878990822. The cubic root of 1150660557 is about 1047.8901114919.

The spelling of 1150660557 in words is "one billion, one hundred fifty million, six hundred sixty thousand, five hundred fifty-seven".