1461312163 has 4 divisors (see below), whose sum is σ = 1547271720. Its totient is φ = 1375352608.

The previous prime is 1461312121. The next prime is 1461312179. The reversal of 1461312163 is 3612131641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3612131641 = 281 ⋅12854561.

It is a cyclic number.

It is not a de Polignac number, because 1461312163 - 2⁹ = 1461311651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461312263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42979753 + ... + 42979786.

It is an arithmetic number, because the mean of its divisors is an integer number (386817930).

Almost surely, 2^1461312163 is an apocalyptic number.

1461312163 is a deficient number, since it is larger than the sum of its proper divisors (85959557).

1461312163 is an equidigital number, since it uses as much as digits as its factorization.

1461312163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85959556.

The product of its digits is 2592, while the sum is 28.

The square root of 1461312163 is about 38227.1129304843. The cubic root of 1461312163 is about 1134.7869506379.

The spelling of 1461312163 in words is "one billion, four hundred sixty-one million, three hundred twelve thousand, one hundred sixty-three".