349701031 has 4 divisors (see below), whose sum is σ = 349971952. Its totient is φ = 349430112.

The previous prime is 349701017. The next prime is 349701041. The reversal of 349701031 is 130107943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349701031 - 2⁷ = 349700903 is a prime.

It is a super-2 number, since 2×349701031² = 244581622164925922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349701041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133515 + ... + 136108.

It is an arithmetic number, because the mean of its divisors is an integer number (87492988).

Almost surely, 2^349701031 is an apocalyptic number.

349701031 is a deficient number, since it is larger than the sum of its proper divisors (270921).

349701031 is a wasteful number, since it uses less digits than its factorization.

349701031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270920.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 349701031 is about 18700.2949441981. The cubic root of 349701031 is about 704.5291566304.

Adding to 349701031 its reverse (130107943), we get a palindrome (479808974).

The spelling of 349701031 in words is "three hundred forty-nine million, seven hundred one thousand, thirty-one".