349806131 has 8 divisors (see below), whose sum is σ = 370128720. Its totient is φ = 329674752.

The previous prime is 349806109. The next prime is 349806143. The reversal of 349806131 is 131608943.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349806131 is a prime.

It is a super-2 number, since 2×349806131² = 244728658570378322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349806091 and 349806100.

It is not an unprimeable number, because it can be changed into a prime (349806151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44030 + ... + 51363.

It is an arithmetic number, because the mean of its divisors is an integer number (46266090).

Almost surely, 2^349806131 is an apocalyptic number.

349806131 is a deficient number, since it is larger than the sum of its proper divisors (20322589).

349806131 is a wasteful number, since it uses less digits than its factorization.

349806131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95605.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 349806131 is about 18703.1048491955. The cubic root of 349806131 is about 704.5997298640.

The spelling of 349806131 in words is "three hundred forty-nine million, eight hundred six thousand, one hundred thirty-one".