1461879005 has 6 divisors (see below), whose sum is σ = 1754357406. Its totient is φ = 1169434808.

The previous prime is 1461878987. The next prime is 1461879007. The reversal of 1461879005 is 5009781641.

It can be written as a sum of positive squares in only one way, i.e., 1169503204 + 292375801 = 34198^2 + 17099^2 .

It is not a de Polignac number, because 1461879005 - 2³⁰ = 388137181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461879007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76946 + ... + 94044.

It is an arithmetic number, because the mean of its divisors is an integer number (292392901).

Almost surely, 2^1461879005 is an apocalyptic number.

It is an amenable number.

1461879005 is a deficient number, since it is larger than the sum of its proper divisors (292478401).

1461879005 is an frugal number, since it uses more digits than its factorization.

1461879005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34203 (or 17104 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1461879005 is about 38234.5263472689. The cubic root of 1461879005 is about 1134.9336593671.

The spelling of 1461879005 in words is "one billion, four hundred sixty-one million, eight hundred seventy-nine thousand, five".