245146656 has 24 divisors (see below), whose sum is σ = 643510224. Its totient is φ = 81715520.

The previous prime is 245146639. The next prime is 245146661. The reversal of 245146656 is 656641542.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276710 + ... + 1276901.

It is an arithmetic number, because the mean of its divisors is an integer number (26812926).

Almost surely, 2^245146656 is an apocalyptic number.

It is an amenable number.

245146656 is an abundant number, since it is smaller than the sum of its proper divisors (398363568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245146656 is a wasteful number, since it uses less digits than its factorization.

245146656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553624 (or 2553616 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 245146656 is about 15657.1598957154. The cubic root of 245146656 is about 625.8573032987.

The spelling of 245146656 in words is "two hundred forty-five million, one hundred forty-six thousand, six hundred fifty-six".