45499591 has 8 divisors (see below), whose sum is σ = 46122768. Its totient is φ = 44880000.

The previous prime is 45499583. The next prime is 45499607. The reversal of 45499591 is 19599454.

It is a happy number.

45499591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45499591 - 2³ = 45499583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45499291) 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 7 ways as a sum of consecutive naturals, for example, 32751 + ... + 34111.

It is an arithmetic number, because the mean of its divisors is an integer number (5765346).

Almost surely, 2^45499591 is an apocalyptic number.

45499591 is a deficient number, since it is larger than the sum of its proper divisors (623177).

45499591 is a wasteful number, since it uses less digits than its factorization.

45499591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793.

The product of its digits is 291600, while the sum is 46.

The square root of 45499591 is about 6745.3384644508. The cubic root of 45499591 is about 357.0007793950. Note that the first 3 decimals are identical.

The spelling of 45499591 in words is "forty-five million, four hundred ninety-nine thousand, five hundred ninety-one".