12461494237 has 4 divisors (see below), whose sum is σ = 12462552540. Its totient is φ = 12460435936.

The previous prime is 12461494219. The next prime is 12461494259. The reversal of 12461494237 is 73249416421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1523262841 + 10938231396 = 39029^2 + 104586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12461494237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12461494193 and 12461494202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12461494267) 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, 511288 + ... + 535105.

It is an arithmetic number, because the mean of its divisors is an integer number (3115638135).

Almost surely, 2^12461494237 is an apocalyptic number.

It is an amenable number.

12461494237 is a deficient number, since it is larger than the sum of its proper divisors (1058303).

12461494237 is a wasteful number, since it uses less digits than its factorization.

12461494237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058302.

The product of its digits is 290304, while the sum is 43.

The spelling of 12461494237 in words is "twelve billion, four hundred sixty-one million, four hundred ninety-four thousand, two hundred thirty-seven".