12740331 has 8 divisors (see below), whose sum is σ = 17004544. Its totient is φ = 8484840.

The previous prime is 12740303. The next prime is 12740333. The reversal of 12740331 is 13304721.

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

It is not a de Polignac number, because 12740331 - 2⁶ = 12740267 is a prime.

It is a super-2 number, since 2×12740331² = 324632067979122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12740298 and 12740307.

It is not an unprimeable number, because it can be changed into a prime (12740333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2970 + ... + 5856.

It is an arithmetic number, because the mean of its divisors is an integer number (2125568).

Almost surely, 2^12740331 is an apocalyptic number.

12740331 is a deficient number, since it is larger than the sum of its proper divisors (4264213).

12740331 is a wasteful number, since it uses less digits than its factorization.

12740331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 12740331 is about 3569.3600266714. The cubic root of 12740331 is about 233.5573669128.

It can be divided in two parts, 127403 and 31, that multiplied together give a palindrome (3949493).

The spelling of 12740331 in words is "twelve million, seven hundred forty thousand, three hundred thirty-one".