113820461 has 4 divisors (see below), whose sum is σ = 113842272. Its totient is φ = 113798652.

The previous prime is 113820451. The next prime is 113820463. The reversal of 113820461 is 164028311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 164028311 = 19 ⋅8633069.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113820461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113820461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113820463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066 + ... + 15228.

It is an arithmetic number, because the mean of its divisors is an integer number (28460568).

Almost surely, 2^113820461 is an apocalyptic number.

It is an amenable number.

113820461 is a deficient number, since it is larger than the sum of its proper divisors (21811).

113820461 is an equidigital number, since it uses as much as digits as its factorization.

113820461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21810.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 113820461 is about 10668.6672550980. The cubic root of 113820461 is about 484.6260780354.

Adding to 113820461 its reverse (164028311), we get a palindrome (277848772).

The spelling of 113820461 in words is "one hundred thirteen million, eight hundred twenty thousand, four hundred sixty-one".