139050115649 has 2 divisors, whose sum is σ = 139050115650. Its totient is φ = 139050115648.

The previous prime is 139050115627. The next prime is 139050115681. The reversal of 139050115649 is 946511050931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135418848049 + 3631267600 = 367993^2 + 60260^2 .

It is a cyclic number.

It is not a de Polignac number, because 139050115649 - 2¹² = 139050111553 is a prime.

It is not a weakly prime, because it can be changed into another prime (139050115549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69525057824 + 69525057825.

It is an arithmetic number, because the mean of its divisors is an integer number (69525057825).

Almost surely, 2^139050115649 is an apocalyptic number.

It is an amenable number.

139050115649 is a deficient number, since it is larger than the sum of its proper divisors (1).

139050115649 is an equidigital number, since it uses as much as digits as its factorization.

139050115649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 44.

The spelling of 139050115649 in words is "one hundred thirty-nine billion, fifty million, one hundred fifteen thousand, six hundred forty-nine".