172043151 has 16 divisors (see below), whose sum is σ = 273560064. Its totient is φ = 94035744.

The previous prime is 172043143. The next prime is 172043161. The reversal of 172043151 is 151340271.

It is not a de Polignac number, because 172043151 - 2³ = 172043143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172043101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177616 + ... + 178581.

It is an arithmetic number, because the mean of its divisors is an integer number (17097504).

Almost surely, 2^172043151 is an apocalyptic number.

172043151 is a deficient number, since it is larger than the sum of its proper divisors (101516913).

172043151 is a wasteful number, since it uses less digits than its factorization.

172043151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356230.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 172043151 is about 13116.5220618882. The cubic root of 172043151 is about 556.1762796549.

The spelling of 172043151 in words is "one hundred seventy-two million, forty-three thousand, one hundred fifty-one".