245892247 has 4 divisors (see below), whose sum is σ = 254371320. Its totient is φ = 237413176.

The previous prime is 245892223. The next prime is 245892253. The reversal of 245892247 is 742298542.

It is a happy number.

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 245892247 - 2¹¹ = 245890199 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 (245892847) 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, 4239493 + ... + 4239550.

It is an arithmetic number, because the mean of its divisors is an integer number (63592830).

Almost surely, 2^245892247 is an apocalyptic number.

245892247 is a deficient number, since it is larger than the sum of its proper divisors (8479073).

245892247 is an equidigital number, since it uses as much as digits as its factorization.

245892247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479072.

The product of its digits is 322560, while the sum is 43.

The square root of 245892247 is about 15680.9517249432. The cubic root of 245892247 is about 626.4911569322.

The spelling of 245892247 in words is "two hundred forty-five million, eight hundred ninety-two thousand, two hundred forty-seven".