45222155 has 8 divisors (see below), whose sum is σ = 59199984. Its totient is φ = 32888800.

The previous prime is 45222137. The next prime is 45222157. The reversal of 45222155 is 55122254.

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

It is not a de Polignac number, because 45222155 - 2¹² = 45218059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45222157) 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, 411056 + ... + 411165.

It is an arithmetic number, because the mean of its divisors is an integer number (7399998).

Almost surely, 2^45222155 is an apocalyptic number.

45222155 is a deficient number, since it is larger than the sum of its proper divisors (13977829).

45222155 is a wasteful number, since it uses less digits than its factorization.

45222155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822237.

The product of its digits is 4000, while the sum is 26.

The square root of 45222155 is about 6724.7420024860. The cubic root of 45222155 is about 356.2736896117.

Subtracting 45222155 from its reverse (55122254), we obtain a palindrome (9900099).

The spelling of 45222155 in words is "forty-five million, two hundred twenty-two thousand, one hundred fifty-five".