12700591 has 2 divisors, whose sum is σ = 12700592. Its totient is φ = 12700590.

The previous prime is 12700573. The next prime is 12700643. The reversal of 12700591 is 19500721.

It is a weak prime.

It is an emirp because it is prime and its reverse (19500721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12700591 - 2⁵ = 12700559 is a prime.

It is a super-2 number, since 2×12700591² = 322610023498562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12700511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6350295 + 6350296.

It is an arithmetic number, because the mean of its divisors is an integer number (6350296).

Almost surely, 2^12700591 is an apocalyptic number.

12700591 is a deficient number, since it is larger than the sum of its proper divisors (1).

12700591 is an equidigital number, since it uses as much as digits as its factorization.

12700591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 12700591 is about 3563.7888545760. The cubic root of 12700591 is about 233.3142744070.

The spelling of 12700591 in words is "twelve million, seven hundred thousand, five hundred ninety-one".