45487247 has 4 divisors (see below), whose sum is σ = 48986280. Its totient is φ = 41988216.

The previous prime is 45487241. The next prime is 45487259. The reversal of 45487247 is 74278454.

It is a happy number.

45487247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45487247 - 2¹⁰ = 45486223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45487241) 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 in 3 ways as a sum of consecutive naturals, for example, 1749497 + ... + 1749522.

It is an arithmetic number, because the mean of its divisors is an integer number (12246570).

Almost surely, 2^45487247 is an apocalyptic number.

45487247 is a deficient number, since it is larger than the sum of its proper divisors (3499033).

45487247 is a wasteful number, since it uses less digits than its factorization.

45487247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499032.

The product of its digits is 250880, while the sum is 41.

The square root of 45487247 is about 6744.4234001136. The cubic root of 45487247 is about 356.9684918066.

The spelling of 45487247 in words is "forty-five million, four hundred eighty-seven thousand, two hundred forty-seven".