15122868 has 48 divisors (see below), whose sum is σ = 37161600. Its totient is φ = 4777344.

The previous prime is 15122867. The next prime is 15122869. The reversal of 15122868 is 86822151.

15122868 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15122867) and next prime (15122869).

It is a super-2 number, since 2×15122868² = 457402273090848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15122867) 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, 43158 + ... + 43506.

It is an arithmetic number, because the mean of its divisors is an integer number (774200).

Almost surely, 2^15122868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15122868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18580800).

15122868 is an abundant number, since it is smaller than the sum of its proper divisors (22038732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15122868 is a wasteful number, since it uses less digits than its factorization.

15122868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 15122868 is about 3888.8131865648. The cubic root of 15122868 is about 247.2927517173.

The spelling of 15122868 in words is "fifteen million, one hundred twenty-two thousand, eight hundred sixty-eight".