172271043 has 40 divisors (see below), whose sum is σ = 309605120. Its totient is φ = 93253680.

The previous prime is 172271023. The next prime is 172271069. The reversal of 172271043 is 340172271.

It is a happy number.

It is not a de Polignac number, because 172271043 - 2⁹ = 172270531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172270998 and 172271016.

It is not an unprimeable number, because it can be changed into a prime (172271023) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2778 + ... + 18768.

It is an arithmetic number, because the mean of its divisors is an integer number (7740128).

Almost surely, 2^172271043 is an apocalyptic number.

172271043 is a deficient number, since it is larger than the sum of its proper divisors (137334077).

172271043 is a wasteful number, since it uses less digits than its factorization.

172271043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16029 (or 16020 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 172271043 is about 13125.2063983771. The cubic root of 172271043 is about 556.4217455952.

The spelling of 172271043 in words is "one hundred seventy-two million, two hundred seventy-one thousand, forty-three".