45345091 has 16 divisors (see below), whose sum is σ = 52005888. Its totient is φ = 39160800.

The previous prime is 45345071. The next prime is 45345101. The reversal of 45345091 is 19054354.

It is not a de Polignac number, because 45345091 - 2¹⁹ = 44820803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45345011) 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, 16206 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (3250368).

Almost surely, 2^45345091 is an apocalyptic number.

45345091 is a deficient number, since it is larger than the sum of its proper divisors (6660797).

45345091 is a wasteful number, since it uses less digits than its factorization.

45345091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 45345091 is about 6733.8763724916. The cubic root of 45345091 is about 356.5962397217.

The spelling of 45345091 in words is "forty-five million, three hundred forty-five thousand, ninety-one".