180461401 has 2 divisors, whose sum is σ = 180461402. Its totient is φ = 180461400.

The previous prime is 180461399. The next prime is 180461417. The reversal of 180461401 is 104164081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179694025 + 767376 = 13405^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 180461401 - 2¹ = 180461399 is a prime.

Together with 180461399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (180461431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90230700 + 90230701.

It is an arithmetic number, because the mean of its divisors is an integer number (90230701).

Almost surely, 2^180461401 is an apocalyptic number.

It is an amenable number.

180461401 is a deficient number, since it is larger than the sum of its proper divisors (1).

180461401 is an equidigital number, since it uses as much as digits as its factorization.

180461401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 180461401 is about 13433.5922597048. The cubic root of 180461401 is about 565.1036445463.

The spelling of 180461401 in words is "one hundred eighty million, four hundred sixty-one thousand, four hundred one".