245865947 has 8 divisors (see below), whose sum is σ = 262670400. Its totient is φ = 229447944.

The previous prime is 245865923. The next prime is 245865953. The reversal of 245865947 is 749568542.

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 245865947 - 2¹² = 245861851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245865895 and 245865904.

It is not an unprimeable number, because it can be changed into a prime (245865967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95297 + ... + 97842.

It is an arithmetic number, because the mean of its divisors is an integer number (32833800).

Almost surely, 2^245865947 is an apocalyptic number.

245865947 is a deficient number, since it is larger than the sum of its proper divisors (16804453).

245865947 is a wasteful number, since it uses less digits than its factorization.

245865947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193225.

The product of its digits is 2419200, while the sum is 50.

The square root of 245865947 is about 15680.1131054594. The cubic root of 245865947 is about 626.4688201769.

The spelling of 245865947 in words is "two hundred forty-five million, eight hundred sixty-five thousand, nine hundred forty-seven".