805413254 has 4 divisors (see below), whose sum is σ = 1208119884. Its totient is φ = 402706626.

The previous prime is 805413253. The next prime is 805413277. The reversal of 805413254 is 452314508.

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

It is a self number, because there is not a number n which added to its sum of digits gives 805413254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805413251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201353312 + ... + 201353315.

It is an arithmetic number, because the mean of its divisors is an integer number (302029971).

Almost surely, 2^805413254 is an apocalyptic number.

805413254 is a deficient number, since it is larger than the sum of its proper divisors (402706630).

805413254 is a wasteful number, since it uses less digits than its factorization.

805413254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402706629.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 805413254 is about 28379.8036286370. The cubic root of 805413254 is about 930.4069032996.

The spelling of 805413254 in words is "eight hundred five million, four hundred thirteen thousand, two hundred fifty-four".