113640163 has 18 divisors (see below), whose sum is σ = 143155044. Its totient is φ = 89906544.

The previous prime is 113640143. The next prime is 113640167. The reversal of 113640163 is 361046311.

It is a happy number.

It is not a de Polignac number, because 113640163 - 2¹³ = 113631971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113640167) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1420 + ... + 15142.

It is an arithmetic number, because the mean of its divisors is an integer number (7953058).

Almost surely, 2^113640163 is an apocalyptic number.

113640163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113640163 is a deficient number, since it is larger than the sum of its proper divisors (29514881).

113640163 is a wasteful number, since it uses less digits than its factorization.

113640163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13763 (or 13743 counting only the distinct ones).

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

The square root of 113640163 is about 10660.2140222418. The cubic root of 113640163 is about 484.3700511628.

Adding to 113640163 its reverse (361046311), we get a palindrome (474686474).

The spelling of 113640163 in words is "one hundred thirteen million, six hundred forty thousand, one hundred sixty-three".