990343141 has 4 divisors (see below), whose sum is σ = 990556000. Its totient is φ = 990130284.

The previous prime is 990343121. The next prime is 990343181. The reversal of 990343141 is 141343099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 990343141 - 2²⁵ = 956788709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 990343097 and 990343106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990343111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99291 + ... + 108808.

It is an arithmetic number, because the mean of its divisors is an integer number (247639000).

Almost surely, 2^990343141 is an apocalyptic number.

It is an amenable number.

990343141 is a deficient number, since it is larger than the sum of its proper divisors (212859).

990343141 is a wasteful number, since it uses less digits than its factorization.

990343141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212858.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 990343141 is about 31469.7178411247. The cubic root of 990343141 is about 996.7706293917.

The spelling of 990343141 in words is "nine hundred ninety million, three hundred forty-three thousand, one hundred forty-one".