1145527872 has 56 divisors (see below), whose sum is σ = 3128662272. Its totient is φ = 369523200.

The previous prime is 1145527861. The next prime is 1145527891. The reversal of 1145527872 is 2787255411.

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

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, 90279 + ... + 102182.

Almost surely, 2^1145527872 is an apocalyptic number.

1145527872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145527872 is an abundant number, since it is smaller than the sum of its proper divisors (1983134400).

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

1145527872 is a wasteful number, since it uses less digits than its factorization.

1145527872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192507 (or 192497 counting only the distinct ones).

The product of its digits is 156800, while the sum is 42.

The square root of 1145527872 is about 33845.6477556569. The cubic root of 1145527872 is about 1046.3297014375.

The spelling of 1145527872 in words is "one billion, one hundred forty-five million, five hundred twenty-seven thousand, eight hundred seventy-two".