349197031 has 2 divisors, whose sum is σ = 349197032. Its totient is φ = 349197030.

The previous prime is 349196977. The next prime is 349197047. The reversal of 349197031 is 130791943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 349197031 - 2¹¹ = 349194983 is a prime.

It is a super-2 number, since 2×349197031² = 243877132918429922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349197071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174598515 + 174598516.

It is an arithmetic number, because the mean of its divisors is an integer number (174598516).

Almost surely, 2^349197031 is an apocalyptic number.

349197031 is a deficient number, since it is larger than the sum of its proper divisors (1).

349197031 is an equidigital number, since it uses as much as digits as its factorization.

349197031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 349197031 is about 18686.8143620040. The cubic root of 349197031 is about 704.1905307895.

The spelling of 349197031 in words is "three hundred forty-nine million, one hundred ninety-seven thousand, thirty-one".