15142668 has 12 divisors (see below), whose sum is σ = 35332920. Its totient is φ = 5047552.

The previous prime is 15142661. The next prime is 15142679. The reversal of 15142668 is 86624151.

15142668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (15142661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630933 + ... + 630956.

It is an arithmetic number, because the mean of its divisors is an integer number (2944410).

Almost surely, 2^15142668 is an apocalyptic number.

It is an amenable number.

15142668 is an abundant number, since it is smaller than the sum of its proper divisors (20190252).

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

15142668 is a wasteful number, since it uses less digits than its factorization.

15142668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261896 (or 1261894 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 15142668 is about 3891.3581176756. The cubic root of 15142668 is about 247.4006294278.

The spelling of 15142668 in words is "fifteen million, one hundred forty-two thousand, six hundred sixty-eight".