15155421542 has 8 divisors (see below), whose sum is σ = 22735323000. Its totient is φ = 7576980544.

The previous prime is 15155421529. The next prime is 15155421583. The reversal of 15155421542 is 24512455151.

15155421542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338792 + ... + 380907.

It is an arithmetic number, because the mean of its divisors is an integer number (2841915375).

Almost surely, 2^15155421542 is an apocalyptic number.

15155421542 is a deficient number, since it is larger than the sum of its proper divisors (7579901458).

15155421542 is a wasteful number, since it uses less digits than its factorization.

15155421542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730230.

The product of its digits is 40000, while the sum is 35.

Adding to 15155421542 its reverse (24512455151), we get a palindrome (39667876693).

The spelling of 15155421542 in words is "fifteen billion, one hundred fifty-five million, four hundred twenty-one thousand, five hundred forty-two".