45201491 has 2 divisors, whose sum is σ = 45201492. Its totient is φ = 45201490.

The previous prime is 45201479. The next prime is 45201523. The reversal of 45201491 is 19410254.

45201491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45201491 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45201491.

It is not a weakly prime, because it can be changed into another prime (45201791) 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, 22600745 + 22600746.

It is an arithmetic number, because the mean of its divisors is an integer number (22600746).

Almost surely, 2^45201491 is an apocalyptic number.

45201491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45201491 is an equidigital number, since it uses as much as digits as its factorization.

45201491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 45201491 is about 6723.2054111116. The cubic root of 45201491 is about 356.2194156159.

The spelling of 45201491 in words is "forty-five million, two hundred one thousand, four hundred ninety-one".