1139505760 has 48 divisors (see below), whose sum is σ = 2696966496. Its totient is φ = 454975488.

The previous prime is 1139505713. The next prime is 1139505769. The reversal of 1139505760 is 675059311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139505769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86149 + ... + 98491.

It is an arithmetic number, because the mean of its divisors is an integer number (56186802).

Almost surely, 2^1139505760 is an apocalyptic number.

1139505760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1139505760 is an abundant number, since it is smaller than the sum of its proper divisors (1557460736).

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

1139505760 is a wasteful number, since it uses less digits than its factorization.

1139505760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12935 (or 12927 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 1139505760 is about 33756.5661760790. The cubic root of 1139505760 is about 1044.4929386802.

The spelling of 1139505760 in words is "one billion, one hundred thirty-nine million, five hundred five thousand, seven hundred sixty".