990133211 has 8 divisors (see below), whose sum is σ = 1023744000. Its totient is φ = 956626920.

The previous prime is 990133201. The next prime is 990133213. The reversal of 990133211 is 112331099.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990133211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (990133213) 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, 6611 + ... + 44988.

It is an arithmetic number, because the mean of its divisors is an integer number (127968000).

Almost surely, 2^990133211 is an apocalyptic number.

990133211 is a deficient number, since it is larger than the sum of its proper divisors (33610789).

990133211 is a wasteful number, since it uses less digits than its factorization.

990133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52249.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 990133211 is about 31466.3822356495. The cubic root of 990133211 is about 996.7001935879.

The spelling of 990133211 in words is "nine hundred ninety million, one hundred thirty-three thousand, two hundred eleven".