15136120639 has 2 divisors, whose sum is σ = 15136120640. Its totient is φ = 15136120638.

The previous prime is 15136120583. The next prime is 15136120673. The reversal of 15136120639 is 93602163151.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15136120639 - 2¹⁹ = 15135596351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15136120598 and 15136120607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15136120039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7568060319 + 7568060320.

It is an arithmetic number, because the mean of its divisors is an integer number (7568060320).

Almost surely, 2^15136120639 is an apocalyptic number.

15136120639 is a deficient number, since it is larger than the sum of its proper divisors (1).

15136120639 is an equidigital number, since it uses as much as digits as its factorization.

15136120639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 15136120639 in words is "fifteen billion, one hundred thirty-six million, one hundred twenty thousand, six hundred thirty-nine".