245317946 has 8 divisors (see below), whose sum is σ = 368071284. Its totient is φ = 122627520.

The previous prime is 245317927. The next prime is 245317951. The reversal of 245317946 is 649713542.

It can be written as a sum of positive squares in 2 ways, for example, as 235776025 + 9541921 = 15355^2 + 3089^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325 + ... + 22568.

Almost surely, 2^245317946 is an apocalyptic number.

245317946 is a deficient number, since it is larger than the sum of its proper divisors (122753338).

245317946 is a wasteful number, since it uses less digits than its factorization.

245317946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31456.

The product of its digits is 181440, while the sum is 41.

The square root of 245317946 is about 15662.6289619591. The cubic root of 245317946 is about 626.0030366601.

The spelling of 245317946 in words is "two hundred forty-five million, three hundred seventeen thousand, nine hundred forty-six".