181879601 has 2 divisors, whose sum is σ = 181879602. Its totient is φ = 181879600.

The previous prime is 181879597. The next prime is 181879603. The reversal of 181879601 is 106978181.

181879601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107661376 + 74218225 = 10376^2 + 8615^2 .

It is a cyclic number.

It is not a de Polignac number, because 181879601 - 2² = 181879597 is a prime.

Together with 181879603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (181879603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90939800 + 90939801.

It is an arithmetic number, because the mean of its divisors is an integer number (90939801).

Almost surely, 2^181879601 is an apocalyptic number.

It is an amenable number.

181879601 is a deficient number, since it is larger than the sum of its proper divisors (1).

181879601 is an equidigital number, since it uses as much as digits as its factorization.

181879601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 41.

The square root of 181879601 is about 13486.2745411770. The cubic root of 181879601 is about 566.5801185390.

The spelling of 181879601 in words is "one hundred eighty-one million, eight hundred seventy-nine thousand, six hundred one".