1156539360 has 96 divisors (see below), whose sum is σ = 3801530880. Its totient is φ = 294998528.

The previous prime is 1156539331. The next prime is 1156539361. The reversal of 1156539360 is 639356511.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156539361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41340 + ... + 63419.

It is an arithmetic number, because the mean of its divisors is an integer number (39599280).

Almost surely, 2^1156539360 is an apocalyptic number.

1156539360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156539360 is an abundant number, since it is smaller than the sum of its proper divisors (2644991520).

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

1156539360 is a wasteful number, since it uses less digits than its factorization.

1156539360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104800 (or 104792 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 1156539360 is about 34007.9308397321. The cubic root of 1156539360 is about 1049.6716615105.

The spelling of 1156539360 in words is "one billion, one hundred fifty-six million, five hundred thirty-nine thousand, three hundred sixty".