45212722 has 8 divisors (see below), whose sum is σ = 68268672. Its totient is φ = 22456500.

The previous prime is 45212701. The next prime is 45212747. The reversal of 45212722 is 22721254.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74554 + ... + 75157.

It is an arithmetic number, because the mean of its divisors is an integer number (8533584).

Almost surely, 2^45212722 is an apocalyptic number.

45212722 is a deficient number, since it is larger than the sum of its proper divisors (23055950).

45212722 is a wasteful number, since it uses less digits than its factorization.

45212722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149864.

The product of its digits is 2240, while the sum is 25.

The square root of 45212722 is about 6724.0406007103. The cubic root of 45212722 is about 356.2489158888.

Adding to 45212722 its reverse (22721254), we get a palindrome (67933976).

The spelling of 45212722 in words is "forty-five million, two hundred twelve thousand, seven hundred twenty-two".