805388157 has 24 divisors (see below), whose sum is σ = 1387972800. Its totient is φ = 460221048.

The previous prime is 805388149. The next prime is 805388167. The reversal of 805388157 is 751883508.

It is a happy number.

805388157 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 805388157 - 2³ = 805388149 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805388167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303057 + ... + 305702.

It is an arithmetic number, because the mean of its divisors is an integer number (57832200).

Almost surely, 2^805388157 is an apocalyptic number.

It is an amenable number.

805388157 is a deficient number, since it is larger than the sum of its proper divisors (582584643).

805388157 is a wasteful number, since it uses less digits than its factorization.

805388157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608782 (or 608769 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The square root of 805388157 is about 28379.3614621612. The cubic root of 805388157 is about 930.3972392485.

The spelling of 805388157 in words is "eight hundred five million, three hundred eighty-eight thousand, one hundred fifty-seven".