15115023413 has 16 divisors (see below), whose sum is σ = 18365481216. Its totient is φ = 12158615040.

The previous prime is 15115023377. The next prime is 15115023449. The reversal of 15115023413 is 31432051151.

It is an interprime number because it is at equal distance from previous prime (15115023377) and next prime (15115023449).

It is a cyclic number.

It is not a de Polignac number, because 15115023413 - 2¹² = 15115019317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15115023463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877148 + ... + 894213.

It is an arithmetic number, because the mean of its divisors is an integer number (1147842576).

Almost surely, 2^15115023413 is an apocalyptic number.

It is an amenable number.

15115023413 is a deficient number, since it is larger than the sum of its proper divisors (3250457803).

15115023413 is a wasteful number, since it uses less digits than its factorization.

15115023413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771444.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 15115023413 its reverse (31432051151), we get a palindrome (46547074564).

The spelling of 15115023413 in words is "fifteen billion, one hundred fifteen million, twenty-three thousand, four hundred thirteen".