505213170139 has 2 divisors, whose sum is σ = 505213170140. Its totient is φ = 505213170138.

The previous prime is 505213170127. The next prime is 505213170149. The reversal of 505213170139 is 931071312505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505213170139 is a prime.

It is a super-2 number, since 2×505213170139² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505213170098 and 505213170107.

It is not a weakly prime, because it can be changed into another prime (505213170149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252606585069 + 252606585070.

It is an arithmetic number, because the mean of its divisors is an integer number (252606585070).

Almost surely, 2^505213170139 is an apocalyptic number.

505213170139 is a deficient number, since it is larger than the sum of its proper divisors (1).

505213170139 is an equidigital number, since it uses as much as digits as its factorization.

505213170139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 37.

The spelling of 505213170139 in words is "five hundred five billion, two hundred thirteen million, one hundred seventy thousand, one hundred thirty-nine".