172065741 has 4 divisors (see below), whose sum is σ = 229420992. Its totient is φ = 114710492.

The previous prime is 172065709. The next prime is 172065743. The reversal of 172065741 is 147560271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 172065741 - 2⁵ = 172065709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172065743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28677621 + ... + 28677626.

It is an arithmetic number, because the mean of its divisors is an integer number (57355248).

Almost surely, 2^172065741 is an apocalyptic number.

It is an amenable number.

172065741 is a deficient number, since it is larger than the sum of its proper divisors (57355251).

172065741 is an equidigital number, since it uses as much as digits as its factorization.

172065741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57355250.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 172065741 is about 13117.3831612864. The cubic root of 172065741 is about 556.2006213627.

The spelling of 172065741 in words is "one hundred seventy-two million, sixty-five thousand, seven hundred forty-one".