905245 has 16 divisors (see below), whose sum is σ = 1203840. Its totient is φ = 648000.

The previous prime is 905227. The next prime is 905249. The reversal of 905245 is 542509.

905245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 905245 - 2⁵ = 905213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5920 + ... + 6070.

It is an arithmetic number, because the mean of its divisors is an integer number (75240).

2⁹⁰⁵²⁴⁵ is an apocalyptic number.

It is an amenable number.

905245 is a deficient number, since it is larger than the sum of its proper divisors (298595).

905245 is a wasteful number, since it uses less digits than its factorization.

905245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 905245 is about 951.4436399493. The cubic root of 905245 is about 96.7361305448.

It can be divided in two parts, 90 and 5245, that added together give a palindrome (5335).

The spelling of 905245 in words is "nine hundred five thousand, two hundred forty-five".