2421513361 has 4 divisors (see below), whose sum is σ = 2421644800. Its totient is φ = 2421381924.

The previous prime is 2421513331. The next prime is 2421513377. The reversal of 2421513361 is 1633151242.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1633151242 = 2 ⋅816575621.

It is a cyclic number.

It is not a de Polignac number, because 2421513361 - 2⁵ = 2421513329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421513331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32481 + ... + 76798.

It is an arithmetic number, because the mean of its divisors is an integer number (605411200).

Almost surely, 2^2421513361 is an apocalyptic number.

It is an amenable number.

2421513361 is a deficient number, since it is larger than the sum of its proper divisors (131439).

2421513361 is a wasteful number, since it uses less digits than its factorization.

2421513361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131438.

The product of its digits is 4320, while the sum is 28.

The square root of 2421513361 is about 49208.8748194876. The cubic root of 2421513361 is about 1342.8544928826.

The spelling of 2421513361 in words is "two billion, four hundred twenty-one million, five hundred thirteen thousand, three hundred sixty-one".