1461616513 has 8 divisors (see below), whose sum is σ = 1715565632. Its totient is φ = 1218954096.

The previous prime is 1461616511. The next prime is 1461616561. The reversal of 1461616513 is 3156161641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1461616513 - 2¹ = 1461616511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461616511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2821395 + ... + 2821912.

It is an arithmetic number, because the mean of its divisors is an integer number (214445704).

Almost surely, 2^1461616513 is an apocalyptic number.

It is an amenable number.

1461616513 is a deficient number, since it is larger than the sum of its proper divisors (253949119).

1461616513 is an equidigital number, since it uses as much as digits as its factorization.

1461616513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5643351.

The product of its digits is 12960, while the sum is 34.

The square root of 1461616513 is about 38231.0935365443. The cubic root of 1461616513 is about 1134.8657265132.

The spelling of 1461616513 in words is "one billion, four hundred sixty-one million, six hundred sixteen thousand, five hundred thirteen".