31245040524149 has 2 divisors, whose sum is σ = 31245040524150. Its totient is φ = 31245040524148.

The previous prime is 31245040524127. The next prime is 31245040524167. The reversal of 31245040524149 is 94142504054213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29665288162225 + 1579752361924 = 5446585^2 + 1256882^2 .

It is a cyclic number.

It is not a de Polignac number, because 31245040524149 - 2²⁸ = 31244772088693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31245040524119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15622520262074 + 15622520262075.

It is an arithmetic number, because the mean of its divisors is an integer number (15622520262075).

Almost surely, 2^{31245040524149} is an apocalyptic number.

It is an amenable number.

31245040524149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31245040524149 is an equidigital number, since it uses as much as digits as its factorization.

31245040524149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 31245040524149 in words is "thirty-one trillion, two hundred forty-five billion, forty million, five hundred twenty-four thousand, one hundred forty-nine".