815452 has 24 divisors (see below), whose sum is σ = 1596672. Its totient is φ = 361200.

The previous prime is 815431. The next prime is 815453. The reversal of 815452 is 254518.

815452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677 + ... + 2107.

It is an arithmetic number, because the mean of its divisors is an integer number (66528).

2⁸¹⁵⁴⁵² is an apocalyptic number.

It is an amenable number.

815452 is a deficient number, since it is larger than the sum of its proper divisors (781220).

815452 is a wasteful number, since it uses less digits than its factorization.

815452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 815452 is about 903.0238092099. The cubic root of 815452 is about 93.4256512867.

The spelling of 815452 in words is "eight hundred fifteen thousand, four hundred fifty-two".