31414538461 has 2 divisors, whose sum is σ = 31414538462. Its totient is φ = 31414538460.

The previous prime is 31414538453. The next prime is 31414538471. The reversal of 31414538461 is 16483541413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17577721561 + 13836816900 = 132581^2 + 117630^2 .

It is an emirp because it is prime and its reverse (16483541413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31414538461 - 2³ = 31414538453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31414538411) by changing a digit.

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 as a sum of consecutive naturals, namely, 15707269230 + 15707269231.

It is an arithmetic number, because the mean of its divisors is an integer number (15707269231).

Almost surely, 2^31414538461 is an apocalyptic number.

It is an amenable number.

31414538461 is a deficient number, since it is larger than the sum of its proper divisors (1).

31414538461 is an equidigital number, since it uses as much as digits as its factorization.

31414538461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The spelling of 31414538461 in words is "thirty-one billion, four hundred fourteen million, five hundred thirty-eight thousand, four hundred sixty-one".