45222149 has 16 divisors (see below), whose sum is σ = 54451200. Its totient is φ = 37502640.

The previous prime is 45222137. The next prime is 45222157. The reversal of 45222149 is 94122254.

It is not a de Polignac number, because 45222149 - 2¹² = 45218053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45222179) 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, 8507 + ... + 12759.

It is an arithmetic number, because the mean of its divisors is an integer number (3403200).

Almost surely, 2^45222149 is an apocalyptic number.

45222149 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

45222149 is a deficient number, since it is larger than the sum of its proper divisors (9229051).

45222149 is an equidigital number, since it uses as much as digits as its factorization.

45222149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305 (or 4291 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 45222149 is about 6724.7415563723. The cubic root of 45222149 is about 356.2736738551.

The spelling of 45222149 in words is "forty-five million, two hundred twenty-two thousand, one hundred forty-nine".