15157312513 has 8 divisors (see below), whose sum is σ = 17606621120. Its totient is φ = 12778998480.

The previous prime is 15157312507. The next prime is 15157312519. The reversal of 15157312513 is 31521375151.

It is an interprime number because it is at equal distance from previous prime (15157312507) and next prime (15157312519).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15157312513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15157312519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17748183 + ... + 17749036.

It is an arithmetic number, because the mean of its divisors is an integer number (2200827640).

Almost surely, 2^15157312513 is an apocalyptic number.

It is an amenable number.

15157312513 is a deficient number, since it is larger than the sum of its proper divisors (2449308607).

15157312513 is an equidigital number, since it uses as much as digits as its factorization.

15157312513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35497287.

The product of its digits is 15750, while the sum is 34.

Adding to 15157312513 its reverse (31521375151), we get a palindrome (46678687664).

The spelling of 15157312513 in words is "fifteen billion, one hundred fifty-seven million, three hundred twelve thousand, five hundred thirteen".