172373357 has 4 divisors (see below), whose sum is σ = 185632860. Its totient is φ = 159113856.

The previous prime is 172373351. The next prime is 172373381. The reversal of 172373357 is 753373271.

172373357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87254281 + 85119076 = 9341^2 + 9226^2 .

It is a cyclic number.

It is not a de Polignac number, because 172373357 - 2⁸ = 172373101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172373357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172373351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6629732 + ... + 6629757.

It is an arithmetic number, because the mean of its divisors is an integer number (46408215).

Almost surely, 2^172373357 is an apocalyptic number.

It is an amenable number.

172373357 is a deficient number, since it is larger than the sum of its proper divisors (13259503).

172373357 is a wasteful number, since it uses less digits than its factorization.

172373357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13259502.

The product of its digits is 92610, while the sum is 38.

The square root of 172373357 is about 13129.1034347361. The cubic root of 172373357 is about 556.5318791513.

The spelling of 172373357 in words is "one hundred seventy-two million, three hundred seventy-three thousand, three hundred fifty-seven".