139357755643 has 2 divisors, whose sum is σ = 139357755644. Its totient is φ = 139357755642.

The previous prime is 139357755583. The next prime is 139357755653. The reversal of 139357755643 is 346557753931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139357755643 is a prime.

It is not a weakly prime, because it can be changed into another prime (139357755653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69678877821 + 69678877822.

It is an arithmetic number, because the mean of its divisors is an integer number (69678877822).

Almost surely, 2^139357755643 is an apocalyptic number.

139357755643 is a deficient number, since it is larger than the sum of its proper divisors (1).

139357755643 is an equidigital number, since it uses as much as digits as its factorization.

139357755643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35721000, while the sum is 58.

The spelling of 139357755643 in words is "one hundred thirty-nine billion, three hundred fifty-seven million, seven hundred fifty-five thousand, six hundred forty-three".