908942143 has 4 divisors (see below), whose sum is σ = 917766928. Its totient is φ = 900117360.

The previous prime is 908942117. The next prime is 908942149. The reversal of 908942143 is 341249809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-908942143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 908942096 and 908942105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (908942149) 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, 4412238 + ... + 4412443.

It is an arithmetic number, because the mean of its divisors is an integer number (229441732).

Almost surely, 2^908942143 is an apocalyptic number.

908942143 is a deficient number, since it is larger than the sum of its proper divisors (8824785).

908942143 is a wasteful number, since it uses less digits than its factorization.

908942143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8824784.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 908942143 is about 30148.6673503158. The cubic root of 908942143 is about 968.6764614424.

The spelling of 908942143 in words is "nine hundred eight million, nine hundred forty-two thousand, one hundred forty-three".