15142 has 8 divisors (see below), whose sum is σ = 23256. Its totient is φ = 7392.

The previous prime is 15139. The next prime is 15149. The reversal of 15142 is 24151.

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

15142 is an undulating number in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15149) 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, 78 + ... + 190.

It is an arithmetic number, because the mean of its divisors is an integer number (2907).

2¹⁵¹⁴² is an apocalyptic number.

15142 is a deficient number, since it is larger than the sum of its proper divisors (8114).

15142 is a wasteful number, since it uses less digits than its factorization.

15142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182.

The product of its digits is 40, while the sum is 13.

The square root of 15142 is about 123.0528341811. The cubic root of 15142 is about 24.7396991450.

Subtracting from 15142 its sum of digits (13), we obtain a square (15129 = 123²).

Adding to 15142 its reverse (24151), we get a palindrome (39293).

Subtracting 15142 from its reverse (24151), we obtain a palindrome (9009).

The spelling of 15142 in words is "fifteen thousand, one hundred forty-two".