172268613 has 80 divisors (see below), whose sum is σ = 297950400. Its totient is φ = 98219520.

The previous prime is 172268561. The next prime is 172268623. The reversal of 172268613 is 316862271.

172268613 is a `hidden beast` number, since 17 + 2 + 26 + 8 + 613 = 666.

It is not a de Polignac number, because 172268613 - 2⁸ = 172268357 is a prime.

Its product of digits (24192) is a multiple of the sum of its prime factors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172268623) 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 79 ways as a sum of consecutive naturals, for example, 1524445 + ... + 1524557.

It is an arithmetic number, because the mean of its divisors is an integer number (3724380).

Almost surely, 2^172268613 is an apocalyptic number.

It is an amenable number.

172268613 is a deficient number, since it is larger than the sum of its proper divisors (125681787).

172268613 is a wasteful number, since it uses less digits than its factorization.

172268613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 215 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 172268613 is about 13125.1138280778. The cubic root of 172268613 is about 556.4191293474.

The spelling of 172268613 in words is "one hundred seventy-two million, two hundred sixty-eight thousand, six hundred thirteen".