1331100139 has 2 divisors, whose sum is σ = 1331100140. Its totient is φ = 1331100138.

The previous prime is 1331100097. The next prime is 1331100161. The reversal of 1331100139 is 9310011331.

It is an a-pointer prime, because the next prime (1331100161) can be obtained adding 1331100139 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331100139 - 2⁷ = 1331100011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331100839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665550069 + 665550070.

It is an arithmetic number, because the mean of its divisors is an integer number (665550070).

Almost surely, 2^1331100139 is an apocalyptic number.

1331100139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331100139 is an equidigital number, since it uses as much as digits as its factorization.

1331100139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 1331100139 is about 36484.2450792119. The cubic root of 1331100139 is about 1100.0275858096.

The spelling of 1331100139 in words is "one billion, three hundred thirty-one million, one hundred thousand, one hundred thirty-nine".