40356143 has 2 divisors, whose sum is σ = 40356144. Its totient is φ = 40356142.

The previous prime is 40356137. The next prime is 40356149. The reversal of 40356143 is 34165304.

It is a balanced prime because it is at equal distance from previous prime (40356137) and next prime (40356149).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40356143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40356149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20178071 + 20178072.

It is an arithmetic number, because the mean of its divisors is an integer number (20178072).

Almost surely, 2^40356143 is an apocalyptic number.

40356143 is a deficient number, since it is larger than the sum of its proper divisors (1).

40356143 is an equidigital number, since it uses as much as digits as its factorization.

40356143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 40356143 is about 6352.6485027900. The cubic root of 40356143 is about 343.0071850643.

The spelling of 40356143 in words is "forty million, three hundred fifty-six thousand, one hundred forty-three".