42941831 has 2 divisors, whose sum is σ = 42941832. Its totient is φ = 42941830.

The previous prime is 42941797. The next prime is 42941849. The reversal of 42941831 is 13814924.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42941831 is a prime.

It is a super-3 number, since 3×42941831³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42941891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21470915 + 21470916.

It is an arithmetic number, because the mean of its divisors is an integer number (21470916).

Almost surely, 2^42941831 is an apocalyptic number.

42941831 is a deficient number, since it is larger than the sum of its proper divisors (1).

42941831 is an equidigital number, since it uses as much as digits as its factorization.

42941831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 42941831 is about 6553.0016786203. The cubic root of 42941831 is about 350.1817586557.

The spelling of 42941831 in words is "forty-two million, nine hundred forty-one thousand, eight hundred thirty-one".