45473591 has 2 divisors, whose sum is σ = 45473592. Its totient is φ = 45473590.

The previous prime is 45473587. The next prime is 45473641. The reversal of 45473591 is 19537454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45473591 - 2² = 45473587 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 (45473531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22736795 + 22736796.

It is an arithmetic number, because the mean of its divisors is an integer number (22736796).

Almost surely, 2^45473591 is an apocalyptic number.

45473591 is a deficient number, since it is larger than the sum of its proper divisors (1).

45473591 is an equidigital number, since it uses as much as digits as its factorization.

45473591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 45473591 is about 6743.4109321619. The cubic root of 45473591 is about 356.9327656786.

It can be divided in two parts, 45473 and 591, that added together give a palindrome (46064).

The spelling of 45473591 in words is "forty-five million, four hundred seventy-three thousand, five hundred ninety-one".