1150764561 has 24 divisors (see below), whose sum is σ = 1763034624. Its totient is φ = 720800640.

The previous prime is 1150764553. The next prime is 1150764569. The reversal of 1150764561 is 1654670511.

It is a happy number.

1150764561 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 7 + 645 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1150764553) and next prime (1150764569).

It is not a de Polignac number, because 1150764561 - 2³ = 1150764553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1150764569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86676 + ... + 99066.

It is an arithmetic number, because the mean of its divisors is an integer number (73459776).

Almost surely, 2^1150764561 is an apocalyptic number.

It is an amenable number.

1150764561 is a deficient number, since it is larger than the sum of its proper divisors (612270063).

1150764561 is a wasteful number, since it uses less digits than its factorization.

1150764561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13021 (or 13018 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1150764561 is about 33922.9208795469. The cubic root of 1150764561 is about 1047.9216821925.

The spelling of 1150764561 in words is "one billion, one hundred fifty million, seven hundred sixty-four thousand, five hundred sixty-one".