113730161 has 4 divisors (see below), whose sum is σ = 113751552. Its totient is φ = 113708772.

The previous prime is 113730121. The next prime is 113730167. The reversal of 113730161 is 161037311.

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 not a de Polignac number, because 113730161 - 2¹⁴ = 113713777 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (113730167) 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, 4136 + ... + 15638.

It is an arithmetic number, because the mean of its divisors is an integer number (28437888).

Almost surely, 2^113730161 is an apocalyptic number.

It is an amenable number.

113730161 is a deficient number, since it is larger than the sum of its proper divisors (21391).

113730161 is an equidigital number, since it uses as much as digits as its factorization.

113730161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21390.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 113730161 is about 10664.4343966288. The cubic root of 113730161 is about 484.4978839994.

Adding to 113730161 its reverse (161037311), we get a palindrome (274767472).

The spelling of 113730161 in words is "one hundred thirteen million, seven hundred thirty thousand, one hundred sixty-one".