1139926965 has 16 divisors (see below), whose sum is σ = 1828225536. Its totient is φ = 606513600.

The previous prime is 1139926951. The next prime is 1139926973. The reversal of 1139926965 is 5696299311.

It is not a de Polignac number, because 1139926965 - 2⁹ = 1139926453 is a prime.

It is a super-2 number, since 2×1139926965² = 2598866971068222450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83941 + ... + 96570.

It is an arithmetic number, because the mean of its divisors is an integer number (114264096).

Almost surely, 2^1139926965 is an apocalyptic number.

1139926965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1139926965 is a deficient number, since it is larger than the sum of its proper divisors (688298571).

1139926965 is a wasteful number, since it uses less digits than its factorization.

1139926965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180940.

The product of its digits is 787320, while the sum is 51.

The square root of 1139926965 is about 33762.8044599379. The cubic root of 1139926965 is about 1044.6216176999.

The spelling of 1139926965 in words is "one billion, one hundred thirty-nine million, nine hundred twenty-six thousand, nine hundred sixty-five".