172240343 has 8 divisors (see below), whose sum is σ = 188543376. Its totient is φ = 156044800.

The previous prime is 172240337. The next prime is 172240351. The reversal of 172240343 is 343042271.

172240343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172240343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172210343) 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, 23498 + ... + 29943.

It is an arithmetic number, because the mean of its divisors is an integer number (23567922).

Almost surely, 2^172240343 is an apocalyptic number.

172240343 is a deficient number, since it is larger than the sum of its proper divisors (16303033).

172240343 is a wasteful number, since it uses less digits than its factorization.

172240343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53745.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 172240343 is about 13124.0368408505. The cubic root of 172240343 is about 556.3886907801.

The spelling of 172240343 in words is "one hundred seventy-two million, two hundred forty thousand, three hundred forty-three".