45241991 has 2 divisors, whose sum is σ = 45241992. Its totient is φ = 45241990.

The previous prime is 45241949. The next prime is 45242011. The reversal of 45241991 is 19914254.

45241991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45241991 - 2²² = 41047687 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45241291) 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 as a sum of consecutive naturals, namely, 22620995 + 22620996.

It is an arithmetic number, because the mean of its divisors is an integer number (22620996).

Almost surely, 2^45241991 is an apocalyptic number.

45241991 is a deficient number, since it is larger than the sum of its proper divisors (1).

45241991 is an equidigital number, since it uses as much as digits as its factorization.

45241991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 45241991 is about 6726.2166929114. The cubic root of 45241991 is about 356.3257733147.

The spelling of 45241991 in words is "forty-five million, two hundred forty-one thousand, nine hundred ninety-one".