45748247 has 4 divisors (see below), whose sum is σ = 45787056. Its totient is φ = 45709440.

The previous prime is 45748237. The next prime is 45748271. The reversal of 45748247 is 74284754.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74284754 = 2 ⋅37142377.

It is a cyclic number.

It is not a de Polignac number, because 45748247 - 2¹⁰ = 45747223 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 (45748237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17579 + ... + 20012.

It is an arithmetic number, because the mean of its divisors is an integer number (11446764).

Almost surely, 2^45748247 is an apocalyptic number.

45748247 is a deficient number, since it is larger than the sum of its proper divisors (38809).

45748247 is a wasteful number, since it uses less digits than its factorization.

45748247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38808.

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

The square root of 45748247 is about 6763.7450425042. The cubic root of 45748247 is about 357.6499366183.

It can be divided in two parts, 4574 and 8247, that added together give a palindrome (12821).

The spelling of 45748247 in words is "forty-five million, seven hundred forty-eight thousand, two hundred forty-seven".