45445247 has 2 divisors, whose sum is σ = 45445248. Its totient is φ = 45445246.

The previous prime is 45445241. The next prime is 45445249. The reversal of 45445247 is 74254454.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45445247 - 2¹⁴ = 45428863 is a prime.

Together with 45445249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45445241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722623 + 22722624.

It is an arithmetic number, because the mean of its divisors is an integer number (22722624).

Almost surely, 2^45445247 is an apocalyptic number.

45445247 is a deficient number, since it is larger than the sum of its proper divisors (1).

45445247 is an equidigital number, since it uses as much as digits as its factorization.

45445247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89600, while the sum is 35.

The square root of 45445247 is about 6741.3089975167. The cubic root of 45445247 is about 356.8585907212.

The spelling of 45445247 in words is "forty-five million, four hundred forty-five thousand, two hundred forty-seven".