15342993 has 16 divisors (see below), whose sum is σ = 24068160. Its totient is φ = 9626688.

The previous prime is 15342989. The next prime is 15343019. The reversal of 15342993 is 39924351.

It is a happy number.

15342993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15342993 - 2² = 15342989 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (15342973) 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, 16255 + ... + 17172.

It is an arithmetic number, because the mean of its divisors is an integer number (1504260).

Almost surely, 2^15342993 is an apocalyptic number.

It is an amenable number.

15342993 is a deficient number, since it is larger than the sum of its proper divisors (8725167).

15342993 is a wasteful number, since it uses less digits than its factorization.

15342993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33453 (or 33447 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 15342993 is about 3917.0132754434. The cubic root of 15342993 is about 248.4868223185.

The spelling of 15342993 in words is "fifteen million, three hundred forty-two thousand, nine hundred ninety-three".