12520214541 has 6 divisors (see below), whose sum is σ = 18084754350. Its totient is φ = 8346809688.

The previous prime is 12520214533. The next prime is 12520214561. The reversal of 12520214541 is 14541202521.

It is a happy number.

12520214541 is a `hidden beast` number, since 1 + 2 + 5 + 202 + 1 + 454 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7595122500 + 4925092041 = 87150^2 + 70179^2 .

It is not a de Polignac number, because 12520214541 - 2³ = 12520214533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520214501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695567466 + ... + 695567483.

It is an arithmetic number, because the mean of its divisors is an integer number (3014125725).

Almost surely, 2^12520214541 is an apocalyptic number.

It is an amenable number.

12520214541 is a deficient number, since it is larger than the sum of its proper divisors (5564539809).

12520214541 is a wasteful number, since it uses less digits than its factorization.

12520214541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391134955 (or 1391134952 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 12520214541 in words is "twelve billion, five hundred twenty million, two hundred fourteen thousand, five hundred forty-one".