181456113 has 16 divisors (see below), whose sum is σ = 264439296. Its totient is φ = 110181120.

The previous prime is 181456097. The next prime is 181456117. The reversal of 181456113 is 311654181.

181456113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 181456113 - 2⁴ = 181456097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (181456117) 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, 55806 + ... + 58967.

It is an arithmetic number, because the mean of its divisors is an integer number (16527456).

Almost surely, 2^181456113 is an apocalyptic number.

It is an amenable number.

181456113 is a deficient number, since it is larger than the sum of its proper divisors (82983183).

181456113 is a wasteful number, since it uses less digits than its factorization.

181456113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114824.

The product of its digits is 2880, while the sum is 30.

The square root of 181456113 is about 13470.5646874955. The cubic root of 181456113 is about 566.1400355641.

The spelling of 181456113 in words is "one hundred eighty-one million, four hundred fifty-six thousand, one hundred thirteen".