172348349 has 2 divisors, whose sum is σ = 172348350. Its totient is φ = 172348348.

The previous prime is 172348333. The next prime is 172348357. The reversal of 172348349 is 943843271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97871449 + 74476900 = 9893^2 + 8630^2 .

It is a cyclic number.

It is not a de Polignac number, because 172348349 - 2⁴ = 172348333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172348369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86174174 + 86174175.

It is an arithmetic number, because the mean of its divisors is an integer number (86174175).

Almost surely, 2^172348349 is an apocalyptic number.

It is an amenable number.

172348349 is a deficient number, since it is larger than the sum of its proper divisors (1).

172348349 is an equidigital number, since it uses as much as digits as its factorization.

172348349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 172348349 is about 13128.1510122332. The cubic root of 172348349 is about 556.5049638890.

The spelling of 172348349 in words is "one hundred seventy-two million, three hundred forty-eight thousand, three hundred forty-nine".