172755147 has 16 divisors (see below), whose sum is σ = 233563680. Its totient is φ = 113568000.

The previous prime is 172755133. The next prime is 172755151. The reversal of 172755147 is 741557271.

It is a happy number.

It is not a de Polignac number, because 172755147 - 2⁴ = 172755131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172751147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84129 + ... + 86157.

It is an arithmetic number, because the mean of its divisors is an integer number (14597730).

Almost surely, 2^172755147 is an apocalyptic number.

172755147 is a deficient number, since it is larger than the sum of its proper divisors (60808533).

172755147 is a wasteful number, since it uses less digits than its factorization.

172755147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414.

The product of its digits is 68600, while the sum is 39.

The square root of 172755147 is about 13143.6352277443. The cubic root of 172755147 is about 556.9424639225.

It can be divided in two parts, 17275 and 5147, that added together give a palindrome (22422).

The spelling of 172755147 in words is "one hundred seventy-two million, seven hundred fifty-five thousand, one hundred forty-seven".