445839157 has 2 divisors, whose sum is σ = 445839158. Its totient is φ = 445839156.

The previous prime is 445839151. The next prime is 445839169. The reversal of 445839157 is 751938544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445674321 + 164836 = 21111^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 445839157 - 2⁷ = 445839029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445839151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222919578 + 222919579.

It is an arithmetic number, because the mean of its divisors is an integer number (222919579).

Almost surely, 2^445839157 is an apocalyptic number.

It is an amenable number.

445839157 is a deficient number, since it is larger than the sum of its proper divisors (1).

445839157 is an equidigital number, since it uses as much as digits as its factorization.

445839157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 445839157 is about 21114.9036701568. The cubic root of 445839157 is about 763.9402684632.

The spelling of 445839157 in words is "four hundred forty-five million, eight hundred thirty-nine thousand, one hundred fifty-seven".