15152121442 has 8 divisors (see below), whose sum is σ = 22730026176. Its totient is φ = 7575446052.

The previous prime is 15152121433. The next prime is 15152121449. The reversal of 15152121442 is 24412125151.

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

It is a self number, because there is not a number n which added to its sum of digits gives 15152121442.

It is not an unprimeable number, because it can be changed into a prime (15152121449) 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, 275878 + ... + 326209.

It is an arithmetic number, because the mean of its divisors is an integer number (2841253272).

Almost surely, 2^15152121442 is an apocalyptic number.

15152121442 is a deficient number, since it is larger than the sum of its proper divisors (7577904734).

15152121442 is a wasteful number, since it uses less digits than its factorization.

15152121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614672.

The product of its digits is 3200, while the sum is 28.

Adding to 15152121442 its reverse (24412125151), we get a palindrome (39564246593).

The spelling of 15152121442 in words is "fifteen billion, one hundred fifty-two million, one hundred twenty-one thousand, four hundred forty-two".