40800113 has 2 divisors, whose sum is σ = 40800114. Its totient is φ = 40800112.

The previous prime is 40800101. The next prime is 40800121. The reversal of 40800113 is 31100804.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38588944 + 2211169 = 6212^2 + 1487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40800113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40800091 and 40800100.

It is not a weakly prime, because it can be changed into another prime (40800143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20400056 + 20400057.

It is an arithmetic number, because the mean of its divisors is an integer number (20400057).

Almost surely, 2^40800113 is an apocalyptic number.

It is an amenable number.

40800113 is a deficient number, since it is larger than the sum of its proper divisors (1).

40800113 is an equidigital number, since it uses as much as digits as its factorization.

40800113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 40800113 is about 6387.4966144805. The cubic root of 40800113 is about 344.2604419668.

Adding to 40800113 its reverse (31100804), we get a palindrome (71900917).

The spelling of 40800113 in words is "forty million, eight hundred thousand, one hundred thirteen".