445031 has 2 divisors, whose sum is σ = 445032. Its totient is φ = 445030.

The previous prime is 445021. The next prime is 445033. The reversal of 445031 is 130544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445031 - 2⁶ = 444967 is a prime.

It is a super-2 number, since 2×445031² = 396105181922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 445033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222515 + 222516.

It is an arithmetic number, because the mean of its divisors is an integer number (222516).

2⁴⁴⁵⁰³¹ is an apocalyptic number.

445031 is a deficient number, since it is larger than the sum of its proper divisors (1).

445031 is an equidigital number, since it uses as much as digits as its factorization.

445031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 445031 is about 667.1064382840. The cubic root of 445031 is about 76.3478400038.

Adding to 445031 its reverse (130544), we get a palindrome (575575).

The spelling of 445031 in words is "four hundred forty-five thousand, thirty-one".