990125822 has 8 divisors (see below), whose sum is σ = 1697358576. Its totient is φ = 424339632.

The previous prime is 990125819. The next prime is 990125839. The reversal of 990125822 is 228521099.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35361623 + ... + 35361650.

It is an arithmetic number, because the mean of its divisors is an integer number (212169822).

Almost surely, 2^990125822 is an apocalyptic number.

990125822 is a deficient number, since it is larger than the sum of its proper divisors (707232754).

990125822 is a wasteful number, since it uses less digits than its factorization.

990125822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70723282.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 990125822 is about 31466.2648244116. The cubic root of 990125822 is about 996.6977142460.

The spelling of 990125822 in words is "nine hundred ninety million, one hundred twenty-five thousand, eight hundred twenty-two".