113640386 has 8 divisors (see below), whose sum is σ = 176338620. Its totient is φ = 54860848.

The previous prime is 113640383. The next prime is 113640409. The reversal of 113640386 is 683046311.

It can be written as a sum of positive squares in 2 ways, for example, as 98624761 + 15015625 = 9931^2 + 3875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113640383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979601 + ... + 979716.

Almost surely, 2^113640386 is an apocalyptic number.

113640386 is a deficient number, since it is larger than the sum of its proper divisors (62698234).

113640386 is a wasteful number, since it uses less digits than its factorization.

113640386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959348.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 113640386 is about 10660.2244816889. The cubic root of 113640386 is about 484.3703679946.

Adding to 113640386 its reverse (683046311), we get a palindrome (796686697).

The spelling of 113640386 in words is "one hundred thirteen million, six hundred forty thousand, three hundred eighty-six".