12745407 has 8 divisors (see below), whose sum is σ = 17024560. Its totient is φ = 8481600.

The previous prime is 12745399. The next prime is 12745483. The reversal of 12745407 is 70454721.

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

It is not a de Polignac number, because 12745407 - 2³ = 12745399 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 (12745807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732 + ... + 5337.

It is an arithmetic number, because the mean of its divisors is an integer number (2128070).

Almost surely, 2^12745407 is an apocalyptic number.

12745407 is a deficient number, since it is larger than the sum of its proper divisors (4279153).

12745407 is an equidigital number, since it uses as much as digits as its factorization.

12745407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 12745407 is about 3570.0710076972. The cubic root of 12745407 is about 233.5883807534.

The spelling of 12745407 in words is "twelve million, seven hundred forty-five thousand, four hundred seven".