2981513 has 4 divisors (see below), whose sum is σ = 3111168. Its totient is φ = 2851860.

The previous prime is 2981509. The next prime is 2981527. The reversal of 2981513 is 3151892.

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.

It is a cyclic number.

It is not a de Polignac number, because 2981513 - 2² = 2981509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2981533) 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, 64793 + ... + 64838.

It is an arithmetic number, because the mean of its divisors is an integer number (777792).

2^2981513 is an apocalyptic number.

2981513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2981513 is a deficient number, since it is larger than the sum of its proper divisors (129655).

2981513 is a wasteful number, since it uses less digits than its factorization.

2981513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129654.

The product of its digits is 2160, while the sum is 29.

The square root of 2981513 is about 1726.7058232368. The cubic root of 2981513 is about 143.9280923133.

It can be divided in two parts, 298151 and 3, that multiplied together give a triangular number (894453 = T₁₃₃₇).

The spelling of 2981513 in words is "two million, nine hundred eighty-one thousand, five hundred thirteen".