12520983 has 8 divisors (see below), whose sum is σ = 16738288. Its totient is φ = 8325504.

The previous prime is 12520979. The next prime is 12520987. The reversal of 12520983 is 38902521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12520979) and next prime (12520987).

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

It is not a de Polignac number, because 12520983 - 2² = 12520979 is a prime.

It is the 3539-th Hogben number.

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 12520983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520987) by changing a digit.

It is a nontrivial repunit in base 3538.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4066 + ... + 6447.

It is an arithmetic number, because the mean of its divisors is an integer number (2092286).

Almost surely, 2^12520983 is an apocalyptic number.

12520983 is a deficient number, since it is larger than the sum of its proper divisors (4217305).

12520983 is a wasteful number, since it uses less digits than its factorization.

12520983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10913.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12520983 is about 3538.5001059771. The cubic root of 12520983 is about 232.2092283640.

The spelling of 12520983 in words is "twelve million, five hundred twenty thousand, nine hundred eighty-three".