445532133 has 16 divisors (see below), whose sum is σ = 631140480. Its totient is φ = 279026496.

The previous prime is 445532123. The next prime is 445532173. The reversal of 445532133 is 331235544.

It is not a de Polignac number, because 445532133 - 2¹⁸ = 445269989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445532133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445532123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65985 + ... + 72422.

It is an arithmetic number, because the mean of its divisors is an integer number (39446280).

Almost surely, 2^445532133 is an apocalyptic number.

It is an amenable number.

445532133 is a deficient number, since it is larger than the sum of its proper divisors (185608347).

445532133 is a wasteful number, since it uses less digits than its factorization.

445532133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138476.

The product of its digits is 21600, while the sum is 30.

The square root of 445532133 is about 21107.6321031043. The cubic root of 445532133 is about 763.7648674964.

Adding to 445532133 its reverse (331235544), we get a palindrome (776767677).

The spelling of 445532133 in words is "four hundred forty-five million, five hundred thirty-two thousand, one hundred thirty-three".