113126281 has 4 divisors (see below), whose sum is σ = 113166864. Its totient is φ = 113085700.

The previous prime is 113126219. The next prime is 113126291. The reversal of 113126281 is 182621311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113126281 is a prime.

It is a super-2 number, since 2×113126281² = 25595110905781922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113126291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15775 + ... + 21796.

It is an arithmetic number, because the mean of its divisors is an integer number (28291716).

Almost surely, 2^113126281 is an apocalyptic number.

It is an amenable number.

113126281 is a deficient number, since it is larger than the sum of its proper divisors (40583).

113126281 is an equidigital number, since it uses as much as digits as its factorization.

113126281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40582.

The product of its digits is 576, while the sum is 25.

The square root of 113126281 is about 10636.0839127942. The cubic root of 113126281 is about 483.6388390653.

Adding to 113126281 its reverse (182621311), we get a palindrome (295747592).

The spelling of 113126281 in words is "one hundred thirteen million, one hundred twenty-six thousand, two hundred eighty-one".