139869192553 has 2 divisors, whose sum is σ = 139869192554. Its totient is φ = 139869192552.

The previous prime is 139869192439. The next prime is 139869192577. The reversal of 139869192553 is 355291968931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139754102569 + 115089984 = 373837^2 + 10728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139869192553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139869192491 and 139869192500.

It is not a weakly prime, because it can be changed into another prime (139869192653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69934596276 + 69934596277.

It is an arithmetic number, because the mean of its divisors is an integer number (69934596277).

Almost surely, 2^139869192553 is an apocalyptic number.

It is an amenable number.

139869192553 is a deficient number, since it is larger than the sum of its proper divisors (1).

139869192553 is an equidigital number, since it uses as much as digits as its factorization.

139869192553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15746400, while the sum is 61.

The spelling of 139869192553 in words is "one hundred thirty-nine billion, eight hundred sixty-nine million, one hundred ninety-two thousand, five hundred fifty-three".