831042106 has 4 divisors (see below), whose sum is σ = 1246563162. Its totient is φ = 415521052.

The previous prime is 831042103. The next prime is 831042167. The reversal of 831042106 is 601240138.

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

It can be written as a sum of positive squares in only one way, i.e., 830304225 + 737881 = 28815^2 + 859^2 .

It is not an unprimeable number, because it can be changed into a prime (831042103) 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 as a sum of consecutive naturals, namely, 207760525 + ... + 207760528.

Almost surely, 2^831042106 is an apocalyptic number.

831042106 is a deficient number, since it is larger than the sum of its proper divisors (415521056).

831042106 is a wasteful number, since it uses less digits than its factorization.

831042106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415521055.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 831042106 is about 28827.8009220266. The cubic root of 831042106 is about 940.1727862545.

The spelling of 831042106 in words is "eight hundred thirty-one million, forty-two thousand, one hundred six".