245122490 has 32 divisors (see below), whose sum is σ = 471744000. Its totient is φ = 91378944.

The previous prime is 245122453. The next prime is 245122511. The reversal of 245122490 is 94221542.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10511 + ... + 24509.

It is an arithmetic number, because the mean of its divisors is an integer number (14742000).

Almost surely, 2^245122490 is an apocalyptic number.

245122490 is a deficient number, since it is larger than the sum of its proper divisors (226621510).

245122490 is a wasteful number, since it uses less digits than its factorization.

245122490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14126.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 245122490 is about 15656.3881530831. The cubic root of 245122490 is about 625.8367374262.

The spelling of 245122490 in words is "two hundred forty-five million, one hundred twenty-two thousand, four hundred ninety".