45230891 has 4 divisors (see below), whose sum is σ = 46689984. Its totient is φ = 43771800.

The previous prime is 45230881. The next prime is 45230893. The reversal of 45230891 is 19803254.

45230891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19803254 = 2 ⋅9901627.

It is a cyclic number.

It is not a de Polignac number, because 45230891 - 2⁶ = 45230827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45230893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729500 + ... + 729561.

It is an arithmetic number, because the mean of its divisors is an integer number (11672496).

Almost surely, 2^45230891 is an apocalyptic number.

45230891 is a deficient number, since it is larger than the sum of its proper divisors (1459093).

45230891 is a wasteful number, since it uses less digits than its factorization.

45230891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459092.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 45230891 is about 6725.3915127671. The cubic root of 45230891 is about 356.2966297433.

The spelling of 45230891 in words is "forty-five million, two hundred thirty thousand, eight hundred ninety-one".