1150665331 has 4 divisors (see below), whose sum is σ = 1181764432. Its totient is φ = 1119566232.

The previous prime is 1150665323. The next prime is 1150665353. The reversal of 1150665331 is 1335660511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1150665331 - 2³ = 1150665323 is a prime.

It is a super-2 number, since 2×1150665331² = 2648061407930679122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1150665293 and 1150665302.

It is not an unprimeable number, because it can be changed into a prime (1150665301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15549495 + ... + 15549568.

It is an arithmetic number, because the mean of its divisors is an integer number (295441108).

Almost surely, 2^1150665331 is an apocalyptic number.

1150665331 is a deficient number, since it is larger than the sum of its proper divisors (31099101).

1150665331 is an equidigital number, since it uses as much as digits as its factorization.

1150665331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31099100.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1150665331 is about 33921.4582675922. The cubic root of 1150665331 is about 1047.8915606944.

The spelling of 1150665331 in words is "one billion, one hundred fifty million, six hundred sixty-five thousand, three hundred thirty-one".