412120391 has 2 divisors, whose sum is σ = 412120392. Its totient is φ = 412120390.

The previous prime is 412120349. The next prime is 412120411. The reversal of 412120391 is 193021214.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412120391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412120301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206060195 + 206060196.

It is an arithmetic number, because the mean of its divisors is an integer number (206060196).

Almost surely, 2^412120391 is an apocalyptic number.

412120391 is a deficient number, since it is larger than the sum of its proper divisors (1).

412120391 is an equidigital number, since it uses as much as digits as its factorization.

412120391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 412120391 is about 20300.7485329975. The cubic root of 412120391 is about 744.1743573082.

The spelling of 412120391 in words is "four hundred twelve million, one hundred twenty thousand, three hundred ninety-one".