245057969 has 8 divisors (see below), whose sum is σ = 264030312. Its totient is φ = 226103040.

The previous prime is 245057963. The next prime is 245058013. The reversal of 245057969 is 969750542.

It can be written as a sum of positive squares in 4 ways, for example, as 13653025 + 231404944 = 3695^2 + 15212^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245057969 is a prime.

It is a super-2 number, since 2×245057969² = 120106816340809922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245057963) 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, 51449 + ... + 56009.

It is an arithmetic number, because the mean of its divisors is an integer number (33003789).

Almost surely, 2^245057969 is an apocalyptic number.

It is an amenable number.

245057969 is a deficient number, since it is larger than the sum of its proper divisors (18972343).

245057969 is a wasteful number, since it uses less digits than its factorization.

245057969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8707.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 245057969 is about 15654.3274847564. The cubic root of 245057969 is about 625.7818218130.

The spelling of 245057969 in words is "two hundred forty-five million, fifty-seven thousand, nine hundred sixty-nine".