1139723616 has 48 divisors (see below), whose sum is σ = 3022642224. Its totient is φ = 375988224.

The previous prime is 1139723581. The next prime is 1139723647. The reversal of 1139723616 is 6163279311.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51885 + ... + 70508.

It is an arithmetic number, because the mean of its divisors is an integer number (62971713).

Almost surely, 2^1139723616 is an apocalyptic number.

1139723616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1139723616 is an abundant number, since it is smaller than the sum of its proper divisors (1882918608).

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

1139723616 is a wasteful number, since it uses less digits than its factorization.

1139723616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122503 (or 122495 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 1139723616 is about 33759.7928903600. The cubic root of 1139723616 is about 1044.5594981080.

The spelling of 1139723616 in words is "one billion, one hundred thirty-nine million, seven hundred twenty-three thousand, six hundred sixteen".