113540143 has 16 divisors (see below), whose sum is σ = 122944000. Its totient is φ = 104524992.

The previous prime is 113540123. The next prime is 113540171. The reversal of 113540143 is 341045311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113540143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113540113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100003 + ... + 101131.

It is an arithmetic number, because the mean of its divisors is an integer number (7684000).

Almost surely, 2^113540143 is an apocalyptic number.

113540143 is a deficient number, since it is larger than the sum of its proper divisors (9403857).

113540143 is a wasteful number, since it uses less digits than its factorization.

113540143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 113540143 is about 10655.5217141161. The cubic root of 113540143 is about 484.2279039043.

Adding to 113540143 its reverse (341045311), we get a palindrome (454585454).

The spelling of 113540143 in words is "one hundred thirteen million, five hundred forty thousand, one hundred forty-three".