478081537 has 2 divisors, whose sum is σ = 478081538. Its totient is φ = 478081536.

The previous prime is 478081529. The next prime is 478081547. The reversal of 478081537 is 735180874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449821681 + 28259856 = 21209^2 + 5316^2 .

It is a cyclic number.

It is not a de Polignac number, because 478081537 - 2³ = 478081529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478081493 and 478081502.

It is not a weakly prime, because it can be changed into another prime (478081547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239040768 + 239040769.

It is an arithmetic number, because the mean of its divisors is an integer number (239040769).

Almost surely, 2^478081537 is an apocalyptic number.

It is an amenable number.

478081537 is a deficient number, since it is larger than the sum of its proper divisors (1).

478081537 is an equidigital number, since it uses as much as digits as its factorization.

478081537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 478081537 is about 21865.0757373488. The cubic root of 478081537 is about 781.9290064256.

The spelling of 478081537 in words is "four hundred seventy-eight million, eighty-one thousand, five hundred thirty-seven".