172682145 has 64 divisors (see below), whose sum is σ = 318689280. Its totient is φ = 88646400.

The previous prime is 172682143. The next prime is 172682179. The reversal of 172682145 is 541286271.

172682145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172682145 - 2¹ = 172682143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172682143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 904000 + ... + 904190.

It is an arithmetic number, because the mean of its divisors is an integer number (4979520).

Almost surely, 2^172682145 is an apocalyptic number.

172682145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172682145 is a deficient number, since it is larger than the sum of its proper divisors (146007135).

172682145 is a wasteful number, since it uses less digits than its factorization.

172682145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 417 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 172682145 is about 13140.8578487099. The cubic root of 172682145 is about 556.8640028891.

The spelling of 172682145 in words is "one hundred seventy-two million, six hundred eighty-two thousand, one hundred forty-five".