40971043 has 2 divisors, whose sum is σ = 40971044. Its totient is φ = 40971042.

The previous prime is 40971023. The next prime is 40971079. The reversal of 40971043 is 34017904.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40971043 is a prime.

It is not a weakly prime, because it can be changed into another prime (40971023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20485521 + 20485522.

It is an arithmetic number, because the mean of its divisors is an integer number (20485522).

Almost surely, 2^40971043 is an apocalyptic number.

40971043 is a deficient number, since it is larger than the sum of its proper divisors (1).

40971043 is an equidigital number, since it uses as much as digits as its factorization.

40971043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40971043 is about 6400.8626762336. The cubic root of 40971043 is about 344.7405260360.

Adding to 40971043 its reverse (34017904), we get a palindrome (74988947).

The spelling of 40971043 in words is "forty million, nine hundred seventy-one thousand, forty-three".