245332447 has 4 divisors (see below), whose sum is σ = 245414176. Its totient is φ = 245250720.

The previous prime is 245332429. The next prime is 245332463. The reversal of 245332447 is 744233542.

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 245332447 - 2⁷ = 245332319 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 (245332247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36183 + ... + 42424.

It is an arithmetic number, because the mean of its divisors is an integer number (61353544).

Almost surely, 2^245332447 is an apocalyptic number.

245332447 is a deficient number, since it is larger than the sum of its proper divisors (81729).

245332447 is an equidigital number, since it uses as much as digits as its factorization.

245332447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81728.

The product of its digits is 80640, while the sum is 34.

The square root of 245332447 is about 15663.0918722965. The cubic root of 245332447 is about 626.0153709815.

Adding to 245332447 its reverse (744233542), we get a palindrome (989565989).

The spelling of 245332447 in words is "two hundred forty-five million, three hundred thirty-two thousand, four hundred forty-seven".