245205764 has 6 divisors (see below), whose sum is σ = 429110094. Its totient is φ = 122602880.

The previous prime is 245205743. The next prime is 245205833. The reversal of 245205764 is 467502542.

It can be written as a sum of positive squares in only one way, i.e., 134745664 + 110460100 = 11608^2 + 10510^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30650717 + ... + 30650724.

It is an arithmetic number, because the mean of its divisors is an integer number (71518349).

Almost surely, 2^245205764 is an apocalyptic number.

It is an amenable number.

245205764 is a deficient number, since it is larger than the sum of its proper divisors (183904330).

245205764 is a wasteful number, since it uses less digits than its factorization.

245205764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61301445 (or 61301443 counting only the distinct ones).

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

The square root of 245205764 is about 15659.0473528884. The cubic root of 245205764 is about 625.9075999950.

The spelling of 245205764 in words is "two hundred forty-five million, two hundred five thousand, seven hundred sixty-four".