45203208091 has 4 divisors (see below), whose sum is σ = 45206466352. Its totient is φ = 45199949832.

The previous prime is 45203208059. The next prime is 45203208119. The reversal of 45203208091 is 19080230254.

45203208091 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: 19080230254 = 2 ⋅9540115127.

It is a cyclic number.

It is not a de Polignac number, because 45203208091 - 2⁵ = 45203208059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45203208041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608231 + ... + 1636096.

It is an arithmetic number, because the mean of its divisors is an integer number (11301616588).

Almost surely, 2^45203208091 is an apocalyptic number.

45203208091 is a deficient number, since it is larger than the sum of its proper divisors (3258261).

45203208091 is a wasteful number, since it uses less digits than its factorization.

45203208091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258260.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 45203208091 in words is "forty-five billion, two hundred three million, two hundred eight thousand, ninety-one".