40290163 has 2 divisors, whose sum is σ = 40290164. Its totient is φ = 40290162.

The previous prime is 40290149. The next prime is 40290169. The reversal of 40290163 is 36109204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40290163 - 2²¹ = 38193011 is a prime.

It is not a weakly prime, because it can be changed into another prime (40290169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20145081 + 20145082.

It is an arithmetic number, because the mean of its divisors is an integer number (20145082).

Almost surely, 2^40290163 is an apocalyptic number.

40290163 is a deficient number, since it is larger than the sum of its proper divisors (1).

40290163 is an equidigital number, since it uses as much as digits as its factorization.

40290163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 40290163 is about 6347.4532688315. The cubic root of 40290163 is about 342.8201506799.

Adding to 40290163 its reverse (36109204), we get a palindrome (76399367).

The spelling of 40290163 in words is "forty million, two hundred ninety thousand, one hundred sixty-three".