42913 has 4 divisors (see below), whose sum is σ = 46228. Its totient is φ = 39600.

The previous prime is 42901. The next prime is 42923. The reversal of 42913 is 31924.

42913 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 can be written as a sum of positive squares in 2 ways, for example, as 7569 + 35344 = 87^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 42913 - 2¹³ = 34721 is a prime.

42913 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42923) 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, 1638 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (11557).

2⁴²⁹¹³ is an apocalyptic number.

It is an amenable number.

42913 is a deficient number, since it is larger than the sum of its proper divisors (3315).

42913 is a wasteful number, since it uses less digits than its factorization.

42913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314.

The product of its digits is 216, while the sum is 19.

The square root of 42913 is about 207.1545316907. The cubic root of 42913 is about 35.0103370827.

The spelling of 42913 in words is "forty-two thousand, nine hundred thirteen".