15455123242 has 16 divisors (see below), whose sum is σ = 25017253632. Its totient is φ = 7118480880.

The previous prime is 15455123239. The next prime is 15455123251. The reversal of 15455123242 is 24232155451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15455123198 and 15455123207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597634 + ... + 622957.

It is an arithmetic number, because the mean of its divisors is an integer number (1563578352).

Almost surely, 2^15455123242 is an apocalyptic number.

15455123242 is a deficient number, since it is larger than the sum of its proper divisors (9562130390).

15455123242 is a wasteful number, since it uses less digits than its factorization.

15455123242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221093.

The product of its digits is 48000, while the sum is 34.

Adding to 15455123242 its reverse (24232155451), we get a palindrome (39687278693).

The spelling of 15455123242 in words is "fifteen billion, four hundred fifty-five million, one hundred twenty-three thousand, two hundred forty-two".