12520597097 has 8 divisors (see below), whose sum is σ = 12912064200. Its totient is φ = 12133229440.

The previous prime is 12520597081. The next prime is 12520597171. The reversal of 12520597097 is 79079502521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 269649241 + 12250947856 = 16421^2 + 110684^2 .

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 12520597097 - 2⁴ = 12520597081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12520597057) 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, 1018658 + ... + 1030875.

It is an arithmetic number, because the mean of its divisors is an integer number (1614008025).

Almost surely, 2^12520597097 is an apocalyptic number.

It is an amenable number.

12520597097 is a deficient number, since it is larger than the sum of its proper divisors (391467103).

12520597097 is a wasteful number, since it uses less digits than its factorization.

12520597097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049723.

The product of its (nonzero) digits is 396900, while the sum is 47.

The spelling of 12520597097 in words is "twelve billion, five hundred twenty million, five hundred ninety-seven thousand, ninety-seven".