245922447 has 4 divisors (see below), whose sum is σ = 327896600. Its totient is φ = 163948296.

The previous prime is 245922433. The next prime is 245922449. The reversal of 245922447 is 744229542.

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

It is not a de Polignac number, because 245922447 - 2⁴ = 245922431 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 (245922449) 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, 40987072 + ... + 40987077.

It is an arithmetic number, because the mean of its divisors is an integer number (81974150).

Almost surely, 2^245922447 is an apocalyptic number.

245922447 is a deficient number, since it is larger than the sum of its proper divisors (81974153).

245922447 is an equidigital number, since it uses as much as digits as its factorization.

245922447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81974152.

The product of its digits is 161280, while the sum is 39.

The square root of 245922447 is about 15681.9146471341. The cubic root of 245922447 is about 626.5168040177.

The spelling of 245922447 in words is "two hundred forty-five million, nine hundred twenty-two thousand, four hundred forty-seven".