172850741 has 4 divisors (see below), whose sum is σ = 197543712. Its totient is φ = 148157772.

The previous prime is 172850729. The next prime is 172850749. The reversal of 172850741 is 147058271.

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 not a de Polignac number, because 172850741 - 2¹⁰ = 172849717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172850749) 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, 12346475 + ... + 12346488.

It is an arithmetic number, because the mean of its divisors is an integer number (49385928).

Almost surely, 2^172850741 is an apocalyptic number.

It is an amenable number.

172850741 is a deficient number, since it is larger than the sum of its proper divisors (24692971).

172850741 is an equidigital number, since it uses as much as digits as its factorization.

172850741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24692970.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 172850741 is about 13147.2712377892. The cubic root of 172850741 is about 557.0451729526.

The spelling of 172850741 in words is "one hundred seventy-two million, eight hundred fifty thousand, seven hundred forty-one".