173041213 has 4 divisors (see below), whose sum is σ = 180564768. Its totient is φ = 165517660.

The previous prime is 173041177. The next prime is 173041229. The reversal of 173041213 is 312140371.

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, and also an emirpimes, since its reverse is a distinct semiprime: 312140371 = 8171 ⋅38201.

It is a de Polignac number, because none of the positive numbers 2^k-173041213 is a prime.

It is a super-2 number, since 2×173041213² = 59886522793022738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173041243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761743 + ... + 3761788.

It is an arithmetic number, because the mean of its divisors is an integer number (45141192).

Almost surely, 2^173041213 is an apocalyptic number.

It is an amenable number.

173041213 is a deficient number, since it is larger than the sum of its proper divisors (7523555).

173041213 is an equidigital number, since it uses as much as digits as its factorization.

173041213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523554.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 173041213 is about 13154.5130278547. The cubic root of 173041213 is about 557.2497088790.

Adding to 173041213 its reverse (312140371), we get a palindrome (485181584).

The spelling of 173041213 in words is "one hundred seventy-three million, forty-one thousand, two hundred thirteen".