331808134 has 32 divisors (see below), whose sum is σ = 607219200. Its totient is φ = 132814080.

The previous prime is 331808123. The next prime is 331808149. The reversal of 331808134 is 431808133.

It is a super-2 number, since 2×331808134² = 220193275577123912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331808096 and 331808105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10102 + ... + 27670.

It is an arithmetic number, because the mean of its divisors is an integer number (18975600).

Almost surely, 2^331808134 is an apocalyptic number.

331808134 is a deficient number, since it is larger than the sum of its proper divisors (275411066).

331808134 is a wasteful number, since it uses less digits than its factorization.

331808134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17668.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 331808134 is about 18215.6013900173. The cubic root of 331808134 is about 692.3021431648.

Subtracting 331808134 from its reverse (431808133), we obtain a palindrome (99999999).

It can be divided in two parts, 33180 and 8134, that added together give a palindrome (41314).

The spelling of 331808134 in words is "three hundred thirty-one million, eight hundred eight thousand, one hundred thirty-four".