1145437956 has 96 divisors (see below), whose sum is σ = 3272635520. Its totient is φ = 344227968.

The previous prime is 1145437903. The next prime is 1145437981. The reversal of 1145437956 is 6597345411.

1145437956 is a `hidden beast` number, since 1 + 14 + 543 + 7 + 95 + 6 = 666.

It is a super-2 number, since 2×1145437956² = 2624056222090915872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50886 + ... + 69858.

Almost surely, 2^1145437956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145437956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636317760).

1145437956 is an abundant number, since it is smaller than the sum of its proper divisors (2127197564).

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

1145437956 is a wasteful number, since it uses less digits than its factorization.

1145437956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19042 (or 19034 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 1145437956 is about 33844.3194051823. The cubic root of 1145437956 is about 1046.3023241775.

The spelling of 1145437956 in words is "one billion, one hundred forty-five million, four hundred thirty-seven thousand, nine hundred fifty-six".