349131 has 8 divisors (see below), whose sum is σ = 481680. Its totient is φ = 224672.

The previous prime is 349121. The next prime is 349133. The reversal of 349131 is 131943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 349131 - 2⁵ = 349099 is a prime.

It is a super-2 number, since 2×349131² = 243784910322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 349098 and 349107.

It is not an unprimeable number, because it can be changed into a prime (349133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1920 + ... + 2093.

It is an arithmetic number, because the mean of its divisors is an integer number (60210).

2³⁴⁹¹³¹ is an apocalyptic number.

349131 is a deficient number, since it is larger than the sum of its proper divisors (132549).

349131 is a wasteful number, since it uses less digits than its factorization.

349131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045.

The product of its digits is 324, while the sum is 21.

The square root of 349131 is about 590.8730828190. The cubic root of 349131 is about 70.4146141966.

The spelling of 349131 in words is "three hundred forty-nine thousand, one hundred thirty-one".