45039226 has 4 divisors (see below), whose sum is σ = 67558842. Its totient is φ = 22519612.

The previous prime is 45039193. The next prime is 45039227. The reversal of 45039226 is 62293054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62293054 = 2 ⋅31146527.

It can be written as a sum of positive squares in only one way, i.e., 30969225 + 14070001 = 5565^2 + 3751^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45039227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11259805 + ... + 11259808.

Almost surely, 2^45039226 is an apocalyptic number.

45039226 is a deficient number, since it is larger than the sum of its proper divisors (22519616).

45039226 is a wasteful number, since it uses less digits than its factorization.

45039226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22519615.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 45039226 is about 6711.1270290466. The cubic root of 45039226 is about 355.7926505796.

The spelling of 45039226 in words is "forty-five million, thirty-nine thousand, two hundred twenty-six".