939955605131 has 2 divisors, whose sum is σ = 939955605132. Its totient is φ = 939955605130.

The previous prime is 939955605119. The next prime is 939955605167. The reversal of 939955605131 is 131506559939.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-939955605131 is a prime.

It is a super-2 number, since 2×939955605131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (939955605191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469977802565 + 469977802566.

It is an arithmetic number, because the mean of its divisors is an integer number (469977802566).

Almost surely, 2^939955605131 is an apocalyptic number.

939955605131 is a deficient number, since it is larger than the sum of its proper divisors (1).

939955605131 is an equidigital number, since it uses as much as digits as its factorization.

939955605131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4920750, while the sum is 56.

The spelling of 939955605131 in words is "nine hundred thirty-nine billion, nine hundred fifty-five million, six hundred five thousand, one hundred thirty-one".