445401263 has 2 divisors, whose sum is σ = 445401264. Its totient is φ = 445401262.

The previous prime is 445401221. The next prime is 445401269. The reversal of 445401263 is 362104544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445401263 - 2⁸ = 445401007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445401269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222700631 + 222700632.

It is an arithmetic number, because the mean of its divisors is an integer number (222700632).

Almost surely, 2^445401263 is an apocalyptic number.

445401263 is a deficient number, since it is larger than the sum of its proper divisors (1).

445401263 is an equidigital number, since it uses as much as digits as its factorization.

445401263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 445401263 is about 21104.5318119119. The cubic root of 445401263 is about 763.6900777568.

It can be divided in two parts, 44540126 and 3, that multiplied together give a triangular number (133620378 = T₁₆₃₄₇).

The spelling of 445401263 in words is "four hundred forty-five million, four hundred one thousand, two hundred sixty-three".