12700291 has 4 divisors (see below), whose sum is σ = 12791800. Its totient is φ = 12608784.

The previous prime is 12700273. The next prime is 12700327. The reversal of 12700291 is 19200721.

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

It is a cyclic number.

It is not a de Polignac number, because 12700291 - 2⁹ = 12699779 is a prime.

It is a super-2 number, since 2×12700291² = 322594782969362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12700271) 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, 45546 + ... + 45823.

It is an arithmetic number, because the mean of its divisors is an integer number (3197950).

Almost surely, 2^12700291 is an apocalyptic number.

12700291 is a deficient number, since it is larger than the sum of its proper divisors (91509).

12700291 is an equidigital number, since it uses as much as digits as its factorization.

12700291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91508.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 12700291 is about 3563.7467642918. The cubic root of 12700291 is about 233.3124373578.

The spelling of 12700291 in words is "twelve million, seven hundred thousand, two hundred ninety-one".