245147345 has 8 divisors (see below), whose sum is σ = 294477864. Its totient is φ = 195917184.

The previous prime is 245147333. The next prime is 245147351. The reversal of 245147345 is 543741542.

It can be written as a sum of positive squares in 4 ways, for example, as 31315216 + 213832129 = 5596^2 + 14623^2 .

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 245147345 - 2⁶ = 245147281 is a prime.

It is a super-3 number, since 3×245147345³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19604 + ... + 29573.

It is an arithmetic number, because the mean of its divisors is an integer number (36809733).

Almost surely, 2^245147345 is an apocalyptic number.

It is an amenable number.

245147345 is a deficient number, since it is larger than the sum of its proper divisors (49330519).

245147345 is an equidigital number, since it uses as much as digits as its factorization.

245147345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50179.

The product of its digits is 67200, while the sum is 35.

The square root of 245147345 is about 15657.1818984133. The cubic root of 245147345 is about 625.8578896351.

Adding to 245147345 its reverse (543741542), we get a palindrome (788888887).

The spelling of 245147345 in words is "two hundred forty-five million, one hundred forty-seven thousand, three hundred forty-five".