1149075915 has 64 divisors (see below), whose sum is σ = 2053201920. Its totient is φ = 544942080.

The previous prime is 1149075913. The next prime is 1149075919. The reversal of 1149075915 is 5195709411.

It is a happy number.

It is not a de Polignac number, because 1149075915 - 2¹ = 1149075913 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1149075913) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2617266 + ... + 2617704.

It is an arithmetic number, because the mean of its divisors is an integer number (32081280).

Almost surely, 2^1149075915 is an apocalyptic number.

1149075915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1149075915 is a deficient number, since it is larger than the sum of its proper divisors (904126005).

1149075915 is a wasteful number, since it uses less digits than its factorization.

1149075915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 56700, while the sum is 42.

The square root of 1149075915 is about 33898.0222874433. The cubic root of 1149075915 is about 1047.4088535666.

The spelling of 1149075915 in words is "one billion, one hundred forty-nine million, seventy-five thousand, nine hundred fifteen".