1139979331 has 2 divisors, whose sum is σ = 1139979332. Its totient is φ = 1139979330.

The previous prime is 1139979317. The next prime is 1139979341. The reversal of 1139979331 is 1339799311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1139979331 - 2¹¹ = 1139977283 is a prime.

It is a super-2 number, since 2×1139979331² = 2599105750214415122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1139979301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569989665 + 569989666.

It is an arithmetic number, because the mean of its divisors is an integer number (569989666).

Almost surely, 2^1139979331 is an apocalyptic number.

1139979331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139979331 is an equidigital number, since it uses as much as digits as its factorization.

1139979331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137781, while the sum is 46.

The square root of 1139979331 is about 33763.5799494070. The cubic root of 1139979331 is about 1044.6376134083.

The spelling of 1139979331 in words is "one billion, one hundred thirty-nine million, nine hundred seventy-nine thousand, three hundred thirty-one".