1145265636 has 24 divisors (see below), whose sum is σ = 2676276064. Its totient is φ = 381185280.

The previous prime is 1145265613. The next prime is 1145265659. The reversal of 1145265636 is 6365625411.

It is an interprime number because it is at equal distance from previous prime (1145265613) and next prime (1145265659).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1145265594 and 1145265603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62830 + ... + 78981.

Almost surely, 2^1145265636 is an apocalyptic number.

It is an amenable number.

1145265636 is an abundant number, since it is smaller than the sum of its proper divisors (1531010428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145265636 is a wasteful number, since it uses less digits than its factorization.

1145265636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142491 (or 142489 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 1145265636 is about 33841.7735350853. The cubic root of 1145265636 is about 1046.2498528767.

The spelling of 1145265636 in words is "one billion, one hundred forty-five million, two hundred sixty-five thousand, six hundred thirty-six".