245654 has 4 divisors (see below), whose sum is σ = 368484. Its totient is φ = 122826.

The previous prime is 245653. The next prime is 245671. The reversal of 245654 is 456542.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245653) by changing a digit.

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, 61412 + ... + 61415.

It is an arithmetic number, because the mean of its divisors is an integer number (92121).

2²⁴⁵⁶⁵⁴ is an apocalyptic number.

245654 is a deficient number, since it is larger than the sum of its proper divisors (122830).

245654 is a wasteful number, since it uses less digits than its factorization.

245654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122829.

The product of its digits is 4800, while the sum is 26.

The square root of 245654 is about 495.6349463063. The cubic root of 245654 is about 62.6288754087.

The spelling of 245654 in words is "two hundred forty-five thousand, six hundred fifty-four".