45791091 has 24 divisors (see below), whose sum is σ = 69507360. Its totient is φ = 28993536.

The previous prime is 45791071. The next prime is 45791107. The reversal of 45791091 is 19019754.

It is not a de Polignac number, because 45791091 - 2⁹ = 45790579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45791051) 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 in 23 ways as a sum of consecutive naturals, for example, 31795 + ... + 33203.

It is an arithmetic number, because the mean of its divisors is an integer number (2896140).

Almost surely, 2^45791091 is an apocalyptic number.

45791091 is a deficient number, since it is larger than the sum of its proper divisors (23716269).

45791091 is a wasteful number, since it uses less digits than its factorization.

45791091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 45791091 is about 6766.9114816140. The cubic root of 45791091 is about 357.7615501694.

The spelling of 45791091 in words is "forty-five million, seven hundred ninety-one thousand, ninety-one".