31841874139 has 2 divisors, whose sum is σ = 31841874140. Its totient is φ = 31841874138.

The previous prime is 31841874073. The next prime is 31841874167. The reversal of 31841874139 is 93147814813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31841874139 - 2⁷ = 31841874011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31841874092 and 31841874101.

It is not a weakly prime, because it can be changed into another prime (31841875139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15920937069 + 15920937070.

It is an arithmetic number, because the mean of its divisors is an integer number (15920937070).

Almost surely, 2^31841874139 is an apocalyptic number.

31841874139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31841874139 is an equidigital number, since it uses as much as digits as its factorization.

31841874139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 49.

The spelling of 31841874139 in words is "thirty-one billion, eight hundred forty-one million, eight hundred seventy-four thousand, one hundred thirty-nine".