172040265 has 12 divisors (see below), whose sum is σ = 298203204. Its totient is φ = 91754784.

The previous prime is 172040261. The next prime is 172040273. The reversal of 172040265 is 562040271.

It can be written as a sum of positive squares in 2 ways, for example, as 87160896 + 84879369 = 9336^2 + 9213^2 .

It is not a de Polignac number, because 172040265 - 2² = 172040261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172040261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1911514 + ... + 1911603.

It is an arithmetic number, because the mean of its divisors is an integer number (24850267).

Almost surely, 2^172040265 is an apocalyptic number.

172040265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172040265 is a deficient number, since it is larger than the sum of its proper divisors (126162939).

172040265 is a wasteful number, since it uses less digits than its factorization.

172040265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823128 (or 3823125 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 172040265 is about 13116.4120475075. The cubic root of 172040265 is about 556.1731697109.

The spelling of 172040265 in words is "one hundred seventy-two million, forty thousand, two hundred sixty-five".