743131 has 2 divisors, whose sum is σ = 743132. Its totient is φ = 743130.

The previous prime is 743129. The next prime is 743137. The reversal of 743131 is 131347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 743131 - 2¹ = 743129 is a prime.

It is a super-3 number, since 3×743131³ = 1231168201533351273, which contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 743129, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 743099 and 743108.

It is not a weakly prime, because it can be changed into another prime (743137) 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, 371565 + 371566.

It is an arithmetic number, because the mean of its divisors is an integer number (371566).

2⁷⁴³¹³¹ is an apocalyptic number.

743131 is a deficient number, since it is larger than the sum of its proper divisors (1).

743131 is an equidigital number, since it uses as much as digits as its factorization.

743131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 19.

The square root of 743131 is about 862.0504625601. The cubic root of 743131 is about 90.5778051531.

Adding to 743131 its reverse (131347), we get a palindrome (874478).

The spelling of 743131 in words is "seven hundred forty-three thousand, one hundred thirty-one".