12520252145 has 8 divisors (see below), whose sum is σ = 15248546304. Its totient is φ = 9866705904.

The previous prime is 12520252139. The next prime is 12520252159. The reversal of 12520252145 is 54125202521.

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 12520252145 - 2⁶ = 12520252081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18686609 + ... + 18687278.

It is an arithmetic number, because the mean of its divisors is an integer number (1906068288).

Almost surely, 2^12520252145 is an apocalyptic number.

It is an amenable number.

12520252145 is a deficient number, since it is larger than the sum of its proper divisors (2728294159).

12520252145 is an equidigital number, since it uses as much as digits as its factorization.

12520252145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37373959.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 12520252145 its reverse (54125202521), we get a palindrome (66645454666).

The spelling of 12520252145 in words is "twelve billion, five hundred twenty million, two hundred fifty-two thousand, one hundred forty-five".