2513947 has 4 divisors (see below), whose sum is σ = 2646280. Its totient is φ = 2381616.

The previous prime is 2513941. The next prime is 2514013. The reversal of 2513947 is 7493152.

2513947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2513947 - 2¹⁵ = 2481179 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66138 + ... + 66175.

It is an arithmetic number, because the mean of its divisors is an integer number (661570).

2^2513947 is an apocalyptic number.

2513947 is a deficient number, since it is larger than the sum of its proper divisors (132333).

2513947 is a wasteful number, since it uses less digits than its factorization.

2513947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132332.

The product of its digits is 7560, while the sum is 31.

The square root of 2513947 is about 1585.5431246106. The cubic root of 2513947 is about 135.9727994910.

The spelling of 2513947 in words is "two million, five hundred thirteen thousand, nine hundred forty-seven".