172265126 has 16 divisors (see below), whose sum is σ = 284478480. Its totient is φ = 77582880.

The previous prime is 172265123. The next prime is 172265143. The reversal of 172265126 is 621562271.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 172265092 and 172265101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172265123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33521 + ... + 38316.

It is an arithmetic number, because the mean of its divisors is an integer number (17779905).

Almost surely, 2^172265126 is an apocalyptic number.

172265126 is a deficient number, since it is larger than the sum of its proper divisors (112213354).

172265126 is a wasteful number, since it uses less digits than its factorization.

172265126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71959.

The product of its digits is 10080, while the sum is 32.

The square root of 172265126 is about 13124.9809904624. The cubic root of 172265126 is about 556.4153750427.

The spelling of 172265126 in words is "one hundred seventy-two million, two hundred sixty-five thousand, one hundred twenty-six".