45122145 has 16 divisors (see below), whose sum is σ = 72411840. Its totient is φ = 23993024.

The previous prime is 45122123. The next prime is 45122153. The reversal of 45122145 is 54122154.

It is a cyclic number.

It is not a de Polignac number, because 45122145 - 2⁸ = 45121889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871 + ... + 9539.

It is an arithmetic number, because the mean of its divisors is an integer number (4525740).

Almost surely, 2^45122145 is an apocalyptic number.

It is an amenable number.

45122145 is a deficient number, since it is larger than the sum of its proper divisors (27289695).

45122145 is a wasteful number, since it uses less digits than its factorization.

45122145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9024.

The product of its digits is 1600, while the sum is 24.

The square root of 45122145 is about 6717.3019137151. The cubic root of 45122145 is about 356.0108595139.

Adding to 45122145 its reverse (54122154), we get a palindrome (99244299).

Subtracting 45122145 from its reverse (54122154), we obtain a palindrome (9000009).

The spelling of 45122145 in words is "forty-five million, one hundred twenty-two thousand, one hundred forty-five".