9992541 has 8 divisors (see below), whose sum is σ = 14348320. Its totient is φ = 6149232.

The previous prime is 9992533. The next prime is 9992569. The reversal of 9992541 is 1452999.

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

It is not a de Polignac number, because 9992541 - 2³ = 9992533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 256219 = 9992541 / (9 + 9 + 9 + 2 + 5 + 4 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9992541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128071 + ... + 128148.

It is an arithmetic number, because the mean of its divisors is an integer number (1793540).

Almost surely, 2^9992541 is an apocalyptic number.

It is an amenable number.

9992541 is a deficient number, since it is larger than the sum of its proper divisors (4355779).

9992541 is a wasteful number, since it uses less digits than its factorization.

9992541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256235.

The product of its digits is 29160, while the sum is 39.

The square root of 9992541 is about 3161.0980687097. The cubic root of 9992541 is about 215.3898892514.

The spelling of 9992541 in words is "nine million, nine hundred ninety-two thousand, five hundred forty-one".