2149513 has 4 divisors (see below), whose sum is σ = 2152980. Its totient is φ = 2146048.

The previous prime is 2149501. The next prime is 2149517. The reversal of 2149513 is 3159412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1669264 + 480249 = 1292^2 + 693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149513 - 2²¹ = 52361 is a prime.

It is a super-2 number, since 2×2149513² = 9240812274338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (538245).

2^2149513 is an apocalyptic number.

It is an amenable number.

2149513 is a deficient number, since it is larger than the sum of its proper divisors (3467).

2149513 is an equidigital number, since it uses as much as digits as its factorization.

2149513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466.

The product of its digits is 1080, while the sum is 25.

The square root of 2149513 is about 1466.1217548348. The cubic root of 2149513 is about 129.0565423265.

It can be divided in two parts, 2149 and 513, that added together give a palindrome (2662).

The spelling of 2149513 in words is "two million, one hundred forty-nine thousand, five hundred thirteen".