245048 has 8 divisors (see below), whose sum is σ = 459480. Its totient is φ = 122520.

The previous prime is 245039. The next prime is 245071. The reversal of 245048 is 840542.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

245048 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 15308 + ... + 15323.

It is an arithmetic number, because the mean of its divisors is an integer number (57435).

2²⁴⁵⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

245048 is a deficient number, since it is larger than the sum of its proper divisors (214432).

245048 is a wasteful number, since it uses less digits than its factorization.

245048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30637 (or 30633 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 245048 is about 495.0232317781. The cubic root of 245048 is about 62.5773336061.

Subtracting from 245048 its sum of digits (23), we obtain a square (245025 = 495²).

The spelling of 245048 in words is "two hundred forty-five thousand, forty-eight".