45222251 has 8 divisors (see below), whose sum is σ = 46571280. Its totient is φ = 43879968.

The previous prime is 45222239. The next prime is 45222257. The reversal of 45222251 is 15222254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45222251 - 2⁶ = 45222187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45222257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14045 + ... + 16961.

It is an arithmetic number, because the mean of its divisors is an integer number (5821410).

Almost surely, 2^45222251 is an apocalyptic number.

45222251 is a deficient number, since it is larger than the sum of its proper divisors (1349029).

45222251 is a wasteful number, since it uses less digits than its factorization.

45222251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373.

The product of its digits is 1600, while the sum is 23.

The square root of 45222251 is about 6724.7491403026. The cubic root of 45222251 is about 356.2739417171.

The spelling of 45222251 in words is "forty-five million, two hundred twenty-two thousand, two hundred fifty-one".