445745297 has 4 divisors (see below), whose sum is σ = 445904496. Its totient is φ = 445586100.

The previous prime is 445745291. The next prime is 445745299. The reversal of 445745297 is 792547544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445745297 - 2⁴ = 445745281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445745291) 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 in 3 ways as a sum of consecutive naturals, for example, 75323 + ... + 81024.

It is an arithmetic number, because the mean of its divisors is an integer number (111476124).

Almost surely, 2^445745297 is an apocalyptic number.

It is an amenable number.

445745297 is a deficient number, since it is larger than the sum of its proper divisors (159199).

445745297 is a wasteful number, since it uses less digits than its factorization.

445745297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159198.

The product of its digits is 1411200, while the sum is 47.

The square root of 445745297 is about 21112.6809524513. The cubic root of 445745297 is about 763.8866553572.

The spelling of 445745297 in words is "four hundred forty-five million, seven hundred forty-five thousand, two hundred ninety-seven".