139826354929 has 2 divisors, whose sum is σ = 139826354930. Its totient is φ = 139826354928.

The previous prime is 139826354911. The next prime is 139826354953. The reversal of 139826354929 is 929453628931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105063498225 + 34762856704 = 324135^2 + 186448^2 .

It is a cyclic number.

It is not a de Polignac number, because 139826354929 - 2⁵ = 139826354897 is a prime.

It is not a weakly prime, because it can be changed into another prime (139826354909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69913177464 + 69913177465.

It is an arithmetic number, because the mean of its divisors is an integer number (69913177465).

Almost surely, 2^139826354929 is an apocalyptic number.

It is an amenable number.

139826354929 is a deficient number, since it is larger than the sum of its proper divisors (1).

139826354929 is an equidigital number, since it uses as much as digits as its factorization.

139826354929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25194240, while the sum is 61.

The spelling of 139826354929 in words is "one hundred thirty-nine billion, eight hundred twenty-six million, three hundred fifty-four thousand, nine hundred twenty-nine".