172200542 has 8 divisors (see below), whose sum is σ = 258356736. Its totient is φ = 86081632.

The previous prime is 172200491. The next prime is 172200593. The reversal of 172200542 is 245002271.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (172200491) and next prime (172200593).

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 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, 11798 + ... + 21990.

It is an arithmetic number, because the mean of its divisors is an integer number (32294592).

Almost surely, 2^172200542 is an apocalyptic number.

172200542 is a deficient number, since it is larger than the sum of its proper divisors (86156194).

172200542 is a wasteful number, since it uses less digits than its factorization.

172200542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18642.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 172200542 is about 13122.5204133962. The cubic root of 172200542 is about 556.3458310337.

The spelling of 172200542 in words is "one hundred seventy-two million, two hundred thousand, five hundred forty-two".