139604126145919 has 2 divisors, whose sum is σ = 139604126145920. Its totient is φ = 139604126145918.

The previous prime is 139604126145881. The next prime is 139604126146019. The reversal of 139604126145919 is 919541621406931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139604126145919 is a prime.

It is a super-2 number, since 2×139604126145919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139604126145619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69802063072959 + 69802063072960.

It is an arithmetic number, because the mean of its divisors is an integer number (69802063072960).

Almost surely, 2^{139604126145919} is an apocalyptic number.

139604126145919 is a deficient number, since it is larger than the sum of its proper divisors (1).

139604126145919 is an equidigital number, since it uses as much as digits as its factorization.

139604126145919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 139604126145919 in words is "one hundred thirty-nine trillion, six hundred four billion, one hundred twenty-six million, one hundred forty-five thousand, nine hundred nineteen".