12740945 has 8 divisors (see below), whose sum is σ = 17473344. Its totient is φ = 8736624.

The previous prime is 12740933. The next prime is 12740953. The reversal of 12740945 is 54904721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12740945 - 2¹⁴ = 12724561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181979 + ... + 182048.

It is an arithmetic number, because the mean of its divisors is an integer number (2184168).

Almost surely, 2^12740945 is an apocalyptic number.

It is an amenable number.

12740945 is a deficient number, since it is larger than the sum of its proper divisors (4732399).

12740945 is an equidigital number, since it uses as much as digits as its factorization.

12740945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364039.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 12740945 is about 3569.4460354514. The cubic root of 12740945 is about 233.5611188279.

The spelling of 12740945 in words is "twelve million, seven hundred forty thousand, nine hundred forty-five".