1461823481 has 4 divisors (see below), whose sum is σ = 1464954192. Its totient is φ = 1458692772.

The previous prime is 1461823427. The next prime is 1461823499. The reversal of 1461823481 is 1843281641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1461823481 - 2¹⁰ = 1461822457 is a prime.

It is a super-2 number, since 2×1461823481² = 4273855779205914722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461823681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1564655 + ... + 1565588.

It is an arithmetic number, because the mean of its divisors is an integer number (366238548).

Almost surely, 2^1461823481 is an apocalyptic number.

It is an amenable number.

1461823481 is a deficient number, since it is larger than the sum of its proper divisors (3130711).

1461823481 is an equidigital number, since it uses as much as digits as its factorization.

1461823481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130710.

The product of its digits is 36864, while the sum is 38.

The square root of 1461823481 is about 38233.8002427172. The cubic root of 1461823481 is about 1134.9192904501.

The spelling of 1461823481 in words is "one billion, four hundred sixty-one million, eight hundred twenty-three thousand, four hundred eighty-one".