481609237 has 2 divisors, whose sum is σ = 481609238. Its totient is φ = 481609236.

The previous prime is 481609231. The next prime is 481609241. The reversal of 481609237 is 732906184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429898756 + 51710481 = 20734^2 + 7191^2 .

It is a cyclic number.

It is not a de Polignac number, because 481609237 - 2³ = 481609229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 481609237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481609231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240804618 + 240804619.

It is an arithmetic number, because the mean of its divisors is an integer number (240804619).

Almost surely, 2^481609237 is an apocalyptic number.

It is an amenable number.

481609237 is a deficient number, since it is larger than the sum of its proper divisors (1).

481609237 is an equidigital number, since it uses as much as digits as its factorization.

481609237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 481609237 is about 21945.5972121973. The cubic root of 481609237 is about 783.8475452596.

The spelling of 481609237 in words is "four hundred eighty-one million, six hundred nine thousand, two hundred thirty-seven".