1149515963 has 4 divisors (see below), whose sum is σ = 1180584000. Its totient is φ = 1118447928.

The previous prime is 1149515959. The next prime is 1149515987. The reversal of 1149515963 is 3695159411.

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 1149515963 - 2² = 1149515959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149515953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15533963 + ... + 15534036.

It is an arithmetic number, because the mean of its divisors is an integer number (295146000).

Almost surely, 2^1149515963 is an apocalyptic number.

1149515963 is a deficient number, since it is larger than the sum of its proper divisors (31068037).

1149515963 is an equidigital number, since it uses as much as digits as its factorization.

1149515963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31068036.

The product of its digits is 145800, while the sum is 44.

The square root of 1149515963 is about 33904.5124282890. The cubic root of 1149515963 is about 1047.5425410922.

The spelling of 1149515963 in words is "one billion, one hundred forty-nine million, five hundred fifteen thousand, nine hundred sixty-three".