1461606385 has 4 divisors (see below), whose sum is σ = 1753927668. Its totient is φ = 1169285104.

The previous prime is 1461606371. The next prime is 1461606403. The reversal of 1461606385 is 5836061641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 697857889 + 763748496 = 26417^2 + 27636^2 .

It is a cyclic number.

It is not a de Polignac number, because 1461606385 - 2¹⁹ = 1461082097 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146160634 + ... + 146160643.

It is an arithmetic number, because the mean of its divisors is an integer number (438481917).

Almost surely, 2^1461606385 is an apocalyptic number.

It is an amenable number.

1461606385 is a deficient number, since it is larger than the sum of its proper divisors (292321283).

1461606385 is an equidigital number, since it uses as much as digits as its factorization.

1461606385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292321282.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1461606385 is about 38230.9610786860. The cubic root of 1461606385 is about 1134.8631052268.

The spelling of 1461606385 in words is "one billion, four hundred sixty-one million, six hundred six thousand, three hundred eighty-five".