15204142 has 8 divisors (see below), whose sum is σ = 24006600. Its totient is φ = 7201944.

The previous prime is 15204131. The next prime is 15204169. The reversal of 15204142 is 24140251.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200017 + ... + 200092.

It is an arithmetic number, because the mean of its divisors is an integer number (3000825).

Almost surely, 2^15204142 is an apocalyptic number.

15204142 is a deficient number, since it is larger than the sum of its proper divisors (8802458).

15204142 is a wasteful number, since it uses less digits than its factorization.

15204142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400130.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 15204142 is about 3899.2489020323. The cubic root of 15204142 is about 247.7349644315.

Adding to 15204142 its reverse (24140251), we get a palindrome (39344393).

The spelling of 15204142 in words is "fifteen million, two hundred four thousand, one hundred forty-two".