15223115442 has 16 divisors (see below), whose sum is σ = 30447843552. Its totient is φ = 5074103040.

The previous prime is 15223115441. The next prime is 15223115473. The reversal of 15223115442 is 24451132251.

It is not an unprimeable number, because it can be changed into a prime (15223115441) 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, 80493 + ... + 192159.

It is an arithmetic number, because the mean of its divisors is an integer number (1902990222).

Almost surely, 2^15223115442 is an apocalyptic number.

15223115442 is an abundant number, since it is smaller than the sum of its proper divisors (15224728110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15223115442 is a wasteful number, since it uses less digits than its factorization.

15223115442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134393.

The product of its digits is 9600, while the sum is 30.

Adding to 15223115442 its reverse (24451132251), we get a palindrome (39674247693).

The spelling of 15223115442 in words is "fifteen billion, two hundred twenty-three million, one hundred fifteen thousand, four hundred forty-two".