15072142 has 8 divisors (see below), whose sum is σ = 22725936. Its totient is φ = 7496832.

The previous prime is 15072131. The next prime is 15072191. The reversal of 15072142 is 24127051.

It is a happy number.

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

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, 19138 + ... + 19909.

It is an arithmetic number, because the mean of its divisors is an integer number (2840742).

Almost surely, 2^15072142 is an apocalyptic number.

15072142 is a deficient number, since it is larger than the sum of its proper divisors (7653794).

15072142 is a wasteful number, since it uses less digits than its factorization.

15072142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39242.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 15072142 is about 3882.2856669751. The cubic root of 15072142 is about 247.0159474370.

Adding to 15072142 its reverse (24127051), we get a palindrome (39199193).

The spelling of 15072142 in words is "fifteen million, seventy-two thousand, one hundred forty-two".