40751 has 2 divisors, whose sum is σ = 40752. Its totient is φ = 40750.

The previous prime is 40739. The next prime is 40759. The reversal of 40751 is 15704.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40751 - 2¹⁰ = 39727 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40751.

It is not a weakly prime, because it can be changed into another prime (40759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20375 + 20376.

It is an arithmetic number, because the mean of its divisors is an integer number (20376).

2⁴⁰⁷⁵¹ is an apocalyptic number.

40751 is a deficient number, since it is larger than the sum of its proper divisors (1).

40751 is an equidigital number, since it uses as much as digits as its factorization.

40751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 40751 is about 201.8687692537. The cubic root of 40751 is about 34.4122252384.

The spelling of 40751 in words is "forty thousand, seven hundred fifty-one".