139831383553 has 2 divisors, whose sum is σ = 139831383554. Its totient is φ = 139831383552.

The previous prime is 139831383463. The next prime is 139831383577. The reversal of 139831383553 is 355383138931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74401836289 + 65429547264 = 272767^2 + 255792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139831383553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139831383553.

It is not a weakly prime, because it can be changed into another prime (139831383353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69915691776 + 69915691777.

It is an arithmetic number, because the mean of its divisors is an integer number (69915691777).

Almost surely, 2^139831383553 is an apocalyptic number.

It is an amenable number.

139831383553 is a deficient number, since it is larger than the sum of its proper divisors (1).

139831383553 is an equidigital number, since it uses as much as digits as its factorization.

139831383553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 52.

The spelling of 139831383553 in words is "one hundred thirty-nine billion, eight hundred thirty-one million, three hundred eighty-three thousand, five hundred fifty-three".