180744461 has 2 divisors, whose sum is σ = 180744462. Its totient is φ = 180744460.

The previous prime is 180744407. The next prime is 180744463. The reversal of 180744461 is 164447081.

180744461 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., 174741961 + 6002500 = 13219^2 + 2450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180744461 is a prime.

Together with 180744463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180744463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90372230 + 90372231.

It is an arithmetic number, because the mean of its divisors is an integer number (90372231).

Almost surely, 2^180744461 is an apocalyptic number.

It is an amenable number.

180744461 is a deficient number, since it is larger than the sum of its proper divisors (1).

180744461 is an equidigital number, since it uses as much as digits as its factorization.

180744461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 180744461 is about 13444.1236605440. The cubic root of 180744461 is about 565.3989517905.

The spelling of 180744461 in words is "one hundred eighty million, seven hundred forty-four thousand, four hundred sixty-one".