900001173 has 8 divisors (see below), whose sum is σ = 1201435200. Its totient is φ = 599283968.

The previous prime is 900001171. The next prime is 900001213. The reversal of 900001173 is 371100009.

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

It is a cyclic number.

It is not a de Polignac number, because 900001173 - 2¹ = 900001171 is a prime.

It is a super-2 number, since 2×900001173² = 1620004222802751858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900001171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176268 + ... + 181301.

It is an arithmetic number, because the mean of its divisors is an integer number (150179400).

Almost surely, 2^900001173 is an apocalyptic number.

It is an amenable number.

900001173 is a deficient number, since it is larger than the sum of its proper divisors (301434027).

900001173 is a wasteful number, since it uses less digits than its factorization.

900001173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358411.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 900001173 is about 30000.0195499936. The cubic root of 900001173 is about 965.4898040569.

The spelling of 900001173 in words is "nine hundred million, one thousand, one hundred seventy-three".