172144413 has 16 divisors (see below), whose sum is σ = 291461760. Its totient is φ = 98368128.

The previous prime is 172144403. The next prime is 172144421. The reversal of 172144413 is 314441271.

172144413 is a `hidden beast` number, since 1 + 7 + 214 + 441 + 3 = 666.

172144413 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 172144413 - 2⁸ = 172144157 is a prime.

It is a super-2 number, since 2×172144413² = 59267397854229138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172144403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455220 + ... + 455597.

It is an arithmetic number, because the mean of its divisors is an integer number (18216360).

Almost surely, 2^172144413 is an apocalyptic number.

It is an amenable number.

172144413 is a deficient number, since it is larger than the sum of its proper divisors (119317347).

172144413 is an equidigital number, since it uses as much as digits as its factorization.

172144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910833 (or 910827 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 172144413 is about 13120.3815874387. The cubic root of 172144413 is about 556.2853772391.

Adding to 172144413 its reverse (314441271), we get a palindrome (486585684).

The spelling of 172144413 in words is "one hundred seventy-two million, one hundred forty-four thousand, four hundred thirteen".