45135227 has 4 divisors (see below), whose sum is σ = 46355136. Its totient is φ = 43915320.

The previous prime is 45135217. The next prime is 45135239. The reversal of 45135227 is 72253154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72253154 = 2 ⋅36126577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45135227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45135227.

It is not an unprimeable number, because it can be changed into a prime (45135217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609899 + ... + 609972.

It is an arithmetic number, because the mean of its divisors is an integer number (11588784).

Almost surely, 2^45135227 is an apocalyptic number.

45135227 is a deficient number, since it is larger than the sum of its proper divisors (1219909).

45135227 is a wasteful number, since it uses less digits than its factorization.

45135227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219908.

The product of its digits is 8400, while the sum is 29.

The square root of 45135227 is about 6718.2755972050. The cubic root of 45135227 is about 356.0452615726.

The spelling of 45135227 in words is "forty-five million, one hundred thirty-five thousand, two hundred twenty-seven".