245774 has 4 divisors (see below), whose sum is σ = 368664. Its totient is φ = 122886.

The previous prime is 245771. The next prime is 245783. The reversal of 245774 is 477542.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245774.

It is not an unprimeable number, because it can be changed into a prime (245771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61442 + ... + 61445.

It is an arithmetic number, because the mean of its divisors is an integer number (92166).

2²⁴⁵⁷⁷⁴ is an apocalyptic number.

245774 is a deficient number, since it is larger than the sum of its proper divisors (122890).

245774 is a wasteful number, since it uses less digits than its factorization.

245774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122889.

The product of its digits is 7840, while the sum is 29.

The square root of 245774 is about 495.7559883652. The cubic root of 245774 is about 62.6390716490.

The spelling of 245774 in words is "two hundred forty-five thousand, seven hundred seventy-four".