1147215960 has 160 divisors (see below), whose sum is σ = 4206589200. Its totient is φ = 278104320.

The previous prime is 1147215917. The next prime is 1147215983. The reversal of 1147215960 is 695127411.

1147215960 is a `hidden beast` number, since 1 + 1 + 47 + 21 + 596 + 0 = 666.

It is a super-2 number, since 2×1147215960² = 2632208917757443200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19546 + ... + 51734.

Almost surely, 2^1147215960 is an apocalyptic number.

1147215960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147215960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2103294600).

1147215960 is an abundant number, since it is smaller than the sum of its proper divisors (3059373240).

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

1147215960 is a wasteful number, since it uses less digits than its factorization.

1147215960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32223 (or 32210 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1147215960 is about 33870.5766115666. The cubic root of 1147215960 is about 1046.8434179349.

The spelling of 1147215960 in words is "one billion, one hundred forty-seven million, two hundred fifteen thousand, nine hundred sixty".