1461324905 has 4 divisors (see below), whose sum is σ = 1753589892. Its totient is φ = 1169059920.

The previous prime is 1461324869. The next prime is 1461324923. The reversal of 1461324905 is 5094231641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5094231641 = 257 ⋅19821913.

It can be written as a sum of positive squares in 2 ways, for example, as 389351824 + 1071973081 = 19732^2 + 32741^2 .

It is not a de Polignac number, because 1461324905 - 2¹⁰ = 1461323881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146132486 + ... + 146132495.

It is an arithmetic number, because the mean of its divisors is an integer number (438397473).

Almost surely, 2^1461324905 is an apocalyptic number.

It is an amenable number.

1461324905 is a deficient number, since it is larger than the sum of its proper divisors (292264987).

1461324905 is an equidigital number, since it uses as much as digits as its factorization.

1461324905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292264986.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1461324905 is about 38227.2795919354. The cubic root of 1461324905 is about 1134.7902489095.

The spelling of 1461324905 in words is "one billion, four hundred sixty-one million, three hundred twenty-four thousand, nine hundred five".