15012142 has 4 divisors (see below), whose sum is σ = 22518216. Its totient is φ = 7506070.

The previous prime is 15012113. The next prime is 15012143. The reversal of 15012142 is 24121051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24121051 = 19 ⋅1269529.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15012143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3753034 + ... + 3753037.

It is an arithmetic number, because the mean of its divisors is an integer number (5629554).

Almost surely, 2^15012142 is an apocalyptic number.

15012142 is a deficient number, since it is larger than the sum of its proper divisors (7506074).

15012142 is an equidigital number, since it uses as much as digits as its factorization.

15012142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506073.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 15012142 is about 3874.5505545805. The cubic root of 15012142 is about 246.6877333683.

Adding to 15012142 its reverse (24121051), we get a palindrome (39133193).

The spelling of 15012142 in words is "fifteen million, twelve thousand, one hundred forty-two".