445023031 has 2 divisors, whose sum is σ = 445023032. Its totient is φ = 445023030.

The previous prime is 445023001. The next prime is 445023079. The reversal of 445023031 is 130320544.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445023031 is a prime.

It is a super-2 number, since 2×445023031² = 396090996240853922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445022993 and 445023011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445023001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222511515 + 222511516.

It is an arithmetic number, because the mean of its divisors is an integer number (222511516).

Almost surely, 2^445023031 is an apocalyptic number.

445023031 is a deficient number, since it is larger than the sum of its proper divisors (1).

445023031 is an equidigital number, since it uses as much as digits as its factorization.

445023031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 445023031 is about 21095.5689897191. The cubic root of 445023031 is about 763.4738429053.

Adding to 445023031 its reverse (130320544), we get a palindrome (575343575).

The spelling of 445023031 in words is "four hundred forty-five million, twenty-three thousand, thirty-one".