446212139 has 2 divisors, whose sum is σ = 446212140. Its totient is φ = 446212138.

The previous prime is 446212079. The next prime is 446212177. The reversal of 446212139 is 931212644.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 446212139 - 2²⁴ = 429434923 is a prime.

It is not a weakly prime, because it can be changed into another prime (446212189) 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, 223106069 + 223106070.

It is an arithmetic number, because the mean of its divisors is an integer number (223106070).

Almost surely, 2^446212139 is an apocalyptic number.

446212139 is a deficient number, since it is larger than the sum of its proper divisors (1).

446212139 is an equidigital number, since it uses as much as digits as its factorization.

446212139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 446212139 is about 21123.7340212378. The cubic root of 446212139 is about 764.1532425399.

The spelling of 446212139 in words is "four hundred forty-six million, two hundred twelve thousand, one hundred thirty-nine".