1145125264 has 20 divisors (see below), whose sum is σ = 2243611980. Its totient is φ = 566128640.

The previous prime is 1145125259. The next prime is 1145125297. The reversal of 1145125264 is 4625215411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 757350400 + 387774864 = 27520^2 + 19692^2 .

It is a super-2 number, since 2×1145125264² = 2622623740502139392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400657 + ... + 403504.

It is an arithmetic number, because the mean of its divisors is an integer number (112180599).

Almost surely, 2^1145125264 is an apocalyptic number.

It is an amenable number.

1145125264 is a deficient number, since it is larger than the sum of its proper divisors (1098486716).

1145125264 is an equidigital number, since it uses as much as digits as its factorization.

1145125264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804258 (or 804252 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 1145125264 is about 33839.6995258528. The cubic root of 1145125264 is about 1046.2071058259.

The spelling of 1145125264 in words is "one billion, one hundred forty-five million, one hundred twenty-five thousand, two hundred sixty-four".