445036531 has 2 divisors, whose sum is σ = 445036532. Its totient is φ = 445036530.

The previous prime is 445036519. The next prime is 445036597. The reversal of 445036531 is 135630544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445036531 - 2⁹ = 445036019 is a prime.

It is a super-2 number, since 2×445036531² = 396115027849027922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445036493 and 445036502.

It is not a weakly prime, because it can be changed into another prime (445036511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222518265 + 222518266.

It is an arithmetic number, because the mean of its divisors is an integer number (222518266).

Almost surely, 2^445036531 is an apocalyptic number.

445036531 is a deficient number, since it is larger than the sum of its proper divisors (1).

445036531 is an equidigital number, since it uses as much as digits as its factorization.

445036531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 445036531 is about 21095.8889597002. Note that the first 3 decimals coincide. The cubic root of 445036531 is about 763.4815629497.

The spelling of 445036531 in words is "four hundred forty-five million, thirty-six thousand, five hundred thirty-one".