12406531245 has 16 divisors (see below), whose sum is σ = 19862174400. Its totient is φ = 6612908544.

The previous prime is 12406531237. The next prime is 12406531253. The reversal of 12406531245 is 54213560421.

It is an interprime number because it is at equal distance from previous prime (12406531237) and next prime (12406531253).

It is not a de Polignac number, because 12406531245 - 2³ = 12406531237 is a prime.

It is a super-2 number, since 2×12406531245² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217924 + ... + 268893.

It is an arithmetic number, because the mean of its divisors is an integer number (1241385900).

Almost surely, 2^12406531245 is an apocalyptic number.

12406531245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12406531245 is a deficient number, since it is larger than the sum of its proper divisors (7455643155).

12406531245 is a wasteful number, since it uses less digits than its factorization.

12406531245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488524.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 12406531245 in words is "twelve billion, four hundred six million, five hundred thirty-one thousand, two hundred forty-five".