15135044613 has 12 divisors (see below), whose sum is σ = 21851781120. Its totient is φ = 9313873296.

The previous prime is 15135044557. The next prime is 15135044621. The reversal of 15135044613 is 31644053151.

It is a happy number.

It is not a de Polignac number, because 15135044613 - 2⁶ = 15135044549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15135024613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14925573 + ... + 14926586.

It is an arithmetic number, because the mean of its divisors is an integer number (1820981760).

Almost surely, 2^15135044613 is an apocalyptic number.

15135044613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15135044613 is a deficient number, since it is larger than the sum of its proper divisors (6716736507).

15135044613 is a wasteful number, since it uses less digits than its factorization.

15135044613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29852188 (or 29852175 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 15135044613 its reverse (31644053151), we get a palindrome (46779097764).

The spelling of 15135044613 in words is "fifteen billion, one hundred thirty-five million, forty-four thousand, six hundred thirteen".