15304012142 has 4 divisors (see below), whose sum is σ = 22956018216. Its totient is φ = 7652006070.

The previous prime is 15304012133. The next prime is 15304012147. The reversal of 15304012142 is 24121040351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24121040351 = 61 ⋅395426891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15304012147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3826003034 + ... + 3826003037.

It is an arithmetic number, because the mean of its divisors is an integer number (5739004554).

Almost surely, 2^15304012142 is an apocalyptic number.

15304012142 is a deficient number, since it is larger than the sum of its proper divisors (7652006074).

15304012142 is an equidigital number, since it uses as much as digits as its factorization.

15304012142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7652006073.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 15304012142 its reverse (24121040351), we get a palindrome (39425052493).

The spelling of 15304012142 in words is "fifteen billion, three hundred four million, twelve thousand, one hundred forty-two".