245260247 has 8 divisors (see below), whose sum is σ = 256296960. Its totient is φ = 234254680.

The previous prime is 245260243. The next prime is 245260289. The reversal of 245260247 is 742062542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245260247 - 2² = 245260243 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 (245260243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9122 + ... + 23952.

It is an arithmetic number, because the mean of its divisors is an integer number (32037120).

Almost surely, 2^245260247 is an apocalyptic number.

245260247 is a deficient number, since it is larger than the sum of its proper divisors (11036713).

245260247 is a wasteful number, since it uses less digits than its factorization.

245260247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15573.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 245260247 is about 15660.7869214800. The cubic root of 245260247 is about 625.9539539874.

The spelling of 245260247 in words is "two hundred forty-five million, two hundred sixty thousand, two hundred forty-seven".