481651637 has 2 divisors, whose sum is σ = 481651638. Its totient is φ = 481651636.

The previous prime is 481651627. The next prime is 481651649. The reversal of 481651637 is 736156184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345439396 + 136212241 = 18586^2 + 11671^2 .

It is a cyclic number.

It is not a de Polignac number, because 481651637 - 2²⁰ = 480603061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 481651594 and 481651603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481651627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240825818 + 240825819.

It is an arithmetic number, because the mean of its divisors is an integer number (240825819).

Almost surely, 2^481651637 is an apocalyptic number.

It is an amenable number.

481651637 is a deficient number, since it is larger than the sum of its proper divisors (1).

481651637 is an equidigital number, since it uses as much as digits as its factorization.

481651637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 481651637 is about 21946.5632161393. The cubic root of 481651637 is about 783.8705474213.

The spelling of 481651637 in words is "four hundred eighty-one million, six hundred fifty-one thousand, six hundred thirty-seven".