814745194 has 16 divisors (see below), whose sum is σ = 1317818880. Its totient is φ = 376518240.

The previous prime is 814745161. The next prime is 814745221. The reversal of 814745194 is 491547418.

It is a super-2 number, since 2×814745194² = 1327619462292195272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 814745194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259914 + ... + 263029.

It is an arithmetic number, because the mean of its divisors is an integer number (82363680).

Almost surely, 2^814745194 is an apocalyptic number.

814745194 is a deficient number, since it is larger than the sum of its proper divisors (503073686).

814745194 is a wasteful number, since it uses less digits than its factorization.

814745194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523005.

The product of its digits is 161280, while the sum is 43.

The square root of 814745194 is about 28543.7417659283. The cubic root of 814745194 is about 933.9865076070.

It can be divided in two parts, 81474 and 5194, that added together give a palindrome (86668).

The spelling of 814745194 in words is "eight hundred fourteen million, seven hundred forty-five thousand, one hundred ninety-four".