45455191 has 2 divisors, whose sum is σ = 45455192. Its totient is φ = 45455190.

The previous prime is 45455159. The next prime is 45455213. The reversal of 45455191 is 19155454.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45455191 - 2⁵ = 45455159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45455591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22727595 + 22727596.

It is an arithmetic number, because the mean of its divisors is an integer number (22727596).

Almost surely, 2^45455191 is an apocalyptic number.

45455191 is a deficient number, since it is larger than the sum of its proper divisors (1).

45455191 is an equidigital number, since it uses as much as digits as its factorization.

45455191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 34.

The square root of 45455191 is about 6742.0464993947. The cubic root of 45455191 is about 356.8846172276.

The spelling of 45455191 in words is "forty-five million, four hundred fifty-five thousand, one hundred ninety-one".