2421513 has 6 divisors (see below), whose sum is σ = 3497754. Its totient is φ = 1614336.

The previous prime is 2421511. The next prime is 2421527. The reversal of 2421513 is 3151242.

It can be written as a sum of positive squares in only one way, i.e., 1710864 + 710649 = 1308^2 + 843^2 .

It is not a de Polignac number, because 2421513 - 2¹ = 2421511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2421511) 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, 134520 + ... + 134537.

It is an arithmetic number, because the mean of its divisors is an integer number (582959).

2^2421513 is an apocalyptic number.

It is an amenable number.

2421513 is a deficient number, since it is larger than the sum of its proper divisors (1076241).

2421513 is a wasteful number, since it uses less digits than its factorization.

2421513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269063 (or 269060 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2421513 is about 1556.1211392433. The cubic root of 2421513 is about 134.2854426152.

Adding to 2421513 its reverse (3151242), we get a palindrome (5572755).

The spelling of 2421513 in words is "two million, four hundred twenty-one thousand, five hundred thirteen".