942491131 has 2 divisors, whose sum is σ = 942491132. Its totient is φ = 942491130.

The previous prime is 942491129. The next prime is 942491153. The reversal of 942491131 is 131194249.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 942491131 - 2¹ = 942491129 is a prime.

It is a super-2 number, since 2×942491131² = 1776579064027318322, which contains 22 as substring.

Together with 942491129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (942491191) 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 as a sum of consecutive naturals, namely, 471245565 + 471245566.

It is an arithmetic number, because the mean of its divisors is an integer number (471245566).

Almost surely, 2^942491131 is an apocalyptic number.

942491131 is a deficient number, since it is larger than the sum of its proper divisors (1).

942491131 is an equidigital number, since it uses as much as digits as its factorization.

942491131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 942491131 is about 30700.0184201899. The cubic root of 942491131 is about 980.4506919777.

The spelling of 942491131 in words is "nine hundred forty-two million, four hundred ninety-one thousand, one hundred thirty-one".