349142173 has 2 divisors, whose sum is σ = 349142174. Its totient is φ = 349142172.

The previous prime is 349142161. The next prime is 349142201. The reversal of 349142173 is 371241943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175377049 + 173765124 = 13243^2 + 13182^2 .

It is a cyclic number.

It is not a de Polignac number, because 349142173 - 2¹⁷ = 349011101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349142473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174571086 + 174571087.

It is an arithmetic number, because the mean of its divisors is an integer number (174571087).

Almost surely, 2^349142173 is an apocalyptic number.

It is an amenable number.

349142173 is a deficient number, since it is larger than the sum of its proper divisors (1).

349142173 is an equidigital number, since it uses as much as digits as its factorization.

349142173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 349142173 is about 18685.3464779222. The cubic root of 349142173 is about 704.1536533213.

The spelling of 349142173 in words is "three hundred forty-nine million, one hundred forty-two thousand, one hundred seventy-three".