45227091 has 16 divisors (see below), whose sum is σ = 74219264. Its totient is φ = 23855904.

The previous prime is 45227069. The next prime is 45227101. The reversal of 45227091 is 19072254.

It is not a de Polignac number, because 45227091 - 2²² = 41032787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45227891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82561 + ... + 83106.

It is an arithmetic number, because the mean of its divisors is an integer number (4638704).

Almost surely, 2^45227091 is an apocalyptic number.

45227091 is a deficient number, since it is larger than the sum of its proper divisors (28992173).

45227091 is a wasteful number, since it uses less digits than its factorization.

45227091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165690.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 45227091 is about 6725.1089953993. The cubic root of 45227091 is about 356.2866515692.

The spelling of 45227091 in words is "forty-five million, two hundred twenty-seven thousand, ninety-one".