173220542 has 8 divisors (see below), whose sum is σ = 283451832. Its totient is φ = 78736600.

The previous prime is 173220539. The next prime is 173220557. The reversal of 173220542 is 245022371.

173220542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3936809 + ... + 3936852.

It is an arithmetic number, because the mean of its divisors is an integer number (35431479).

Almost surely, 2^173220542 is an apocalyptic number.

173220542 is a deficient number, since it is larger than the sum of its proper divisors (110231290).

173220542 is a wasteful number, since it uses less digits than its factorization.

173220542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873674.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 173220542 is about 13161.3275166299. The cubic root of 173220542 is about 557.4421419039.

The spelling of 173220542 in words is "one hundred seventy-three million, two hundred twenty thousand, five hundred forty-two".