993131042 has 8 divisors (see below), whose sum is σ = 1541065500. Its totient is φ = 479442544.

The previous prime is 993131033. The next prime is 993131063. The reversal of 993131042 is 240131399.

It can be written as a sum of positive squares in 2 ways, for example, as 880961761 + 112169281 = 29681^2 + 10591^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8561417 + ... + 8561532.

Almost surely, 2^993131042 is an apocalyptic number.

993131042 is a deficient number, since it is larger than the sum of its proper divisors (547934458).

993131042 is a wasteful number, since it uses less digits than its factorization.

993131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17122980.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 993131042 is about 31513.9816906718. The cubic root of 993131042 is about 997.7050847260.

The spelling of 993131042 in words is "nine hundred ninety-three million, one hundred thirty-one thousand, forty-two".