999212741 has 8 divisors (see below), whose sum is σ = 1014793920. Its totient is φ = 983651328.

The previous prime is 999212737. The next prime is 999212761. The reversal of 999212741 is 147212999.

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 999212741 - 2² = 999212737 is a prime.

It is a super-2 number, since 2×999212741² = 1996852203553466162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999212692 and 999212701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999212761) 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, 121925 + ... + 129861.

It is an arithmetic number, because the mean of its divisors is an integer number (126849240).

Almost surely, 2^999212741 is an apocalyptic number.

It is an amenable number.

999212741 is a deficient number, since it is larger than the sum of its proper divisors (15581179).

999212741 is a wasteful number, since it uses less digits than its factorization.

999212741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9883.

The product of its digits is 81648, while the sum is 44.

The square root of 999212741 is about 31610.3264930940. The cubic root of 999212741 is about 999.7375114391.

The spelling of 999212741 in words is "nine hundred ninety-nine million, two hundred twelve thousand, seven hundred forty-one".