999146 has 8 divisors (see below), whose sum is σ = 1512324. Its totient is φ = 495040.

The previous prime is 999133. The next prime is 999149. The reversal of 999146 is 641999.

It can be written as a sum of positive squares in 2 ways, for example, as 978121 + 21025 = 989^2 + 145^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999146.

It is not an unprimeable number, because it can be changed into a prime (999149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985 + ... + 2436.

2⁹⁹⁹¹⁴⁶ is an apocalyptic number.

999146 is a deficient number, since it is larger than the sum of its proper divisors (513178).

999146 is a wasteful number, since it uses less digits than its factorization.

999146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536.

The product of its digits is 17496, while the sum is 38.

The square root of 999146 is about 999.5729087966. The cubic root of 999146 is about 99.9715252260.

The spelling of 999146 in words is "nine hundred ninety-nine thousand, one hundred forty-six".