15242231297 has 8 divisors (see below), whose sum is σ = 16359914376. Its totient is φ = 14149112832.

The previous prime is 15242231267. The next prime is 15242231309. The reversal of 15242231297 is 79213224251.

It can be written as a sum of positive squares in 4 ways, for example, as 7218371521 + 8023859776 = 84961^2 + 89576^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 15242231297 - 2¹⁴ = 15242214913 is a prime.

It is a super-2 number, since 2×15242231297² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15242231297.

It is not an unprimeable number, because it can be changed into a prime (15242231237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6139868 + ... + 6142349.

It is an arithmetic number, because the mean of its divisors is an integer number (2044989297).

Almost surely, 2^15242231297 is an apocalyptic number.

15242231297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

15242231297 is a deficient number, since it is larger than the sum of its proper divisors (1117683079).

15242231297 is a wasteful number, since it uses less digits than its factorization.

15242231297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12282307.

The product of its digits is 60480, while the sum is 38.

The spelling of 15242231297 in words is "fifteen billion, two hundred forty-two million, two hundred thirty-one thousand, two hundred ninety-seven".