15530231297 has 8 divisors (see below), whose sum is σ = 18228534336. Its totient is φ = 12951852912.

The previous prime is 15530231183. The next prime is 15530231303. The reversal of 15530231297 is 79213203551.

It is a happy number.

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 15530231297 - 2¹⁴ = 15530214913 is a prime.

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 15530231297.

It is not an unprimeable number, because it can be changed into a prime (15530231597) 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, 29980883 + ... + 29981400.

It is an arithmetic number, because the mean of its divisors is an integer number (2278566792).

Almost surely, 2^15530231297 is an apocalyptic number.

It is an amenable number.

15530231297 is a deficient number, since it is larger than the sum of its proper divisors (2698303039).

15530231297 is an equidigital number, since it uses as much as digits as its factorization.

15530231297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59962327.

The product of its (nonzero) digits is 56700, while the sum is 38.

The spelling of 15530231297 in words is "fifteen billion, five hundred thirty million, two hundred thirty-one thousand, two hundred ninety-seven".