172306142 has 4 divisors (see below), whose sum is σ = 258459216. Its totient is φ = 86153070.

The previous prime is 172306103. The next prime is 172306163. The reversal of 172306142 is 241603271.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43076534 + ... + 43076537.

It is an arithmetic number, because the mean of its divisors is an integer number (64614804).

Almost surely, 2^172306142 is an apocalyptic number.

172306142 is a deficient number, since it is larger than the sum of its proper divisors (86153074).

172306142 is an equidigital number, since it uses as much as digits as its factorization.

172306142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86153073.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 172306142 is about 13126.5434140142. The cubic root of 172306142 is about 556.4595320204.

The spelling of 172306142 in words is "one hundred seventy-two million, three hundred six thousand, one hundred forty-two".