12547483237 has 4 divisors (see below), whose sum is σ = 12548552800. Its totient is φ = 12546413676.

The previous prime is 12547483229. The next prime is 12547483261. The reversal of 12547483237 is 73238474521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73238474521 = 751 ⋅97521271.

It is a cyclic number.

It is not a de Polignac number, because 12547483237 - 2³ = 12547483229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12547483037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516987 + ... + 540712.

It is an arithmetic number, because the mean of its divisors is an integer number (3137138200).

Almost surely, 2^12547483237 is an apocalyptic number.

It is an amenable number.

12547483237 is a deficient number, since it is larger than the sum of its proper divisors (1069563).

12547483237 is a wasteful number, since it uses less digits than its factorization.

12547483237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069562.

The product of its digits is 1128960, while the sum is 46.

The spelling of 12547483237 in words is "twelve billion, five hundred forty-seven million, four hundred eighty-three thousand, two hundred thirty-seven".