172073943 has 16 divisors (see below), whose sum is σ = 255129600. Its totient is φ = 114623640.

The previous prime is 172073927. The next prime is 172073969. The reversal of 172073943 is 349370271.

172073943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172073943 - 2⁴ = 172073927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172073898 and 172073907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172073903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55488 + ... + 58506.

It is an arithmetic number, because the mean of its divisors is an integer number (15945600).

Almost surely, 2^172073943 is an apocalyptic number.

172073943 is a deficient number, since it is larger than the sum of its proper divisors (83055657).

172073943 is a wasteful number, since it uses less digits than its factorization.

172073943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139 (or 5133 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 172073943 is about 13117.6957961374. The cubic root of 172073943 is about 556.2094588473.

The spelling of 172073943 in words is "one hundred seventy-two million, seventy-three thousand, nine hundred forty-three".