172348345 has 8 divisors (see below), whose sum is σ = 222727176. Its totient is φ = 127272576.

The previous prime is 172348333. The next prime is 172348349. The reversal of 172348345 is 543843271.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 423801 + 171924544 = 651^2 + 13112^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 172348345 - 2²³ = 163959737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172348349) 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, 1325692 + ... + 1325821.

It is an arithmetic number, because the mean of its divisors is an integer number (27840897).

Almost surely, 2^172348345 is an apocalyptic number.

It is an amenable number.

172348345 is a deficient number, since it is larger than the sum of its proper divisors (50378831).

172348345 is a wasteful number, since it uses less digits than its factorization.

172348345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651531.

The product of its digits is 80640, while the sum is 37.

The square root of 172348345 is about 13128.1508598888. The cubic root of 172348345 is about 556.5049595837.

The spelling of 172348345 in words is "one hundred seventy-two million, three hundred forty-eight thousand, three hundred forty-five".