412812091 has 2 divisors, whose sum is σ = 412812092. Its totient is φ = 412812090.

The previous prime is 412812079. The next prime is 412812133. The reversal of 412812091 is 190218214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 412812091 - 2²⁷ = 278594363 is a prime.

It is not a weakly prime, because it can be changed into another prime (412812011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206406045 + 206406046.

It is an arithmetic number, because the mean of its divisors is an integer number (206406046).

Almost surely, 2^412812091 is an apocalyptic number.

412812091 is a deficient number, since it is larger than the sum of its proper divisors (1).

412812091 is an equidigital number, since it uses as much as digits as its factorization.

412812091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 412812091 is about 20317.7777082042. Note that the first 4 decimals coincide. The cubic root of 412812091 is about 744.5904636214.

The spelling of 412812091 in words is "four hundred twelve million, eight hundred twelve thousand, ninety-one".