994977142 has 8 divisors (see below), whose sum is σ = 1571016600. Its totient is φ = 471304944.

The previous prime is 994977107. The next prime is 994977143. The reversal of 994977142 is 241779499.

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

It is a self number, because there is not a number n which added to its sum of digits gives 994977142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994977143) 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 3 ways as a sum of consecutive naturals, for example, 13091767 + ... + 13091842.

It is an arithmetic number, because the mean of its divisors is an integer number (196377075).

Almost surely, 2^994977142 is an apocalyptic number.

994977142 is a deficient number, since it is larger than the sum of its proper divisors (576039458).

994977142 is a wasteful number, since it uses less digits than its factorization.

994977142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26183630.

The product of its digits is 1143072, while the sum is 52.

The square root of 994977142 is about 31543.2582654361. The cubic root of 994977142 is about 998.3229029177.

The spelling of 994977142 in words is "nine hundred ninety-four million, nine hundred seventy-seven thousand, one hundred forty-two".