15204231142 has 16 divisors (see below), whose sum is σ = 23654654352. Its totient is φ = 7323415200.

The previous prime is 15204231127. The next prime is 15204231143. The reversal of 15204231142 is 24113240251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15204231143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009668 + ... + 1024615.

It is an arithmetic number, because the mean of its divisors is an integer number (1478415897).

Almost surely, 2^15204231142 is an apocalyptic number.

15204231142 is a deficient number, since it is larger than the sum of its proper divisors (8450423210).

15204231142 is a wasteful number, since it uses less digits than its factorization.

15204231142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034423.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 15204231142 its reverse (24113240251), we get a palindrome (39317471393).

It can be divided in two parts, 152042 and 31142, that added together give a square (183184 = 428²).

The spelling of 15204231142 in words is "fifteen billion, two hundred four million, two hundred thirty-one thousand, one hundred forty-two".