15231353428 has 12 divisors (see below), whose sum is σ = 26656639380. Its totient is φ = 7615170752.

The previous prime is 15231353419. The next prime is 15231353429. The reversal of 15231353428 is 82435313251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1177725124 + 14053628304 = 34318^2 + 118548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15231353429) 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, 54163 + ... + 182746.

It is an arithmetic number, because the mean of its divisors is an integer number (2221386615).

Almost surely, 2^15231353428 is an apocalyptic number.

It is an amenable number.

15231353428 is a deficient number, since it is larger than the sum of its proper divisors (11425285952).

15231353428 is a wasteful number, since it uses less digits than its factorization.

15231353428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252986 (or 252984 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

Adding to 15231353428 its reverse (82435313251), we get a palindrome (97666666679).

The spelling of 15231353428 in words is "fifteen billion, two hundred thirty-one million, three hundred fifty-three thousand, four hundred twenty-eight".