1145015212 has 48 divisors (see below), whose sum is σ = 2342535552. Its totient is φ = 483918080.

The previous prime is 1145015203. The next prime is 1145015227. The reversal of 1145015212 is 2125105411.

It is a super-2 number, since 2×1145015212² = 2622119671422809888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52863 + ... + 71305.

It is an arithmetic number, because the mean of its divisors is an integer number (48802824).

Almost surely, 2^1145015212 is an apocalyptic number.

It is an amenable number.

1145015212 is an abundant number, since it is smaller than the sum of its proper divisors (1197520340).

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

1145015212 is a wasteful number, since it uses less digits than its factorization.

1145015212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18558 (or 18556 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1145015212 is about 33838.0734085143. The cubic root of 1145015212 is about 1046.1735895878.

It can be divided in two parts, 11450 and 15212, that added together give a palindrome (26662).

The spelling of 1145015212 in words is "one billion, one hundred forty-five million, fifteen thousand, two hundred twelve".