45221085 has 96 divisors (see below), whose sum is σ = 100289280. Its totient is φ = 19035648.

The previous prime is 45221051. The next prime is 45221093. The reversal of 45221085 is 58012254.

It is a happy number.

It is not a de Polignac number, because 45221085 - 2⁶ = 45221021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 110361 + ... + 110769.

It is an arithmetic number, because the mean of its divisors is an integer number (1044680).

Almost surely, 2^45221085 is an apocalyptic number.

45221085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45221085 is an abundant number, since it is smaller than the sum of its proper divisors (55068195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45221085 is a wasteful number, since it uses less digits than its factorization.

45221085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 45221085 is about 6724.6624450600. The cubic root of 45221085 is about 356.2708796627.

The spelling of 45221085 in words is "forty-five million, two hundred twenty-one thousand, eighty-five".