139213663933 has 2 divisors, whose sum is σ = 139213663934. Its totient is φ = 139213663932.

The previous prime is 139213663829. The next prime is 139213663937. The reversal of 139213663933 is 339366312931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73950275844 + 65263388089 = 271938^2 + 255467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139213663933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139213663937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69606831966 + 69606831967.

It is an arithmetic number, because the mean of its divisors is an integer number (69606831967).

Almost surely, 2^139213663933 is an apocalyptic number.

It is an amenable number.

139213663933 is a deficient number, since it is larger than the sum of its proper divisors (1).

139213663933 is an equidigital number, since it uses as much as digits as its factorization.

139213663933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1417176, while the sum is 49.

The spelling of 139213663933 in words is "one hundred thirty-nine billion, two hundred thirteen million, six hundred sixty-three thousand, nine hundred thirty-three".