40403113 has 2 divisors, whose sum is σ = 40403114. Its totient is φ = 40403112.

The previous prime is 40403059. The next prime is 40403123. The reversal of 40403113 is 31130404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39087504 + 1315609 = 6252^2 + 1147^2 .

It is a cyclic number.

It is not a de Polignac number, because 40403113 - 2¹⁷ = 40272041 is a prime.

It is not a weakly prime, because it can be changed into another prime (40403123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201556 + 20201557.

It is an arithmetic number, because the mean of its divisors is an integer number (20201557).

Almost surely, 2^40403113 is an apocalyptic number.

It is an amenable number.

40403113 is a deficient number, since it is larger than the sum of its proper divisors (1).

40403113 is an equidigital number, since it uses as much as digits as its factorization.

40403113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40403113 is about 6356.3443110014. The cubic root of 40403113 is about 343.1402073656.

Adding to 40403113 its reverse (31130404), we get a palindrome (71533517).

The spelling of 40403113 in words is "forty million, four hundred three thousand, one hundred thirteen".