613542 has 16 divisors (see below), whose sum is σ = 1234800. Its totient is φ = 203232.

The previous prime is 613523. The next prime is 613549. The reversal of 613542 is 245316.

It is a happy number.

613542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 613542.

It is not an unprimeable number, because it can be changed into a prime (613549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1584 + ... + 1932.

It is an arithmetic number, because the mean of its divisors is an integer number (77175).

2⁶¹³⁵⁴² is an apocalyptic number.

613542 is an abundant number, since it is smaller than the sum of its proper divisors (621258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613542 is a wasteful number, since it uses less digits than its factorization.

613542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647.

The product of its digits is 720, while the sum is 21.

The square root of 613542 is about 783.2892186160. The cubic root of 613542 is about 84.9730941370.

Adding to 613542 its reverse (245316), we get a palindrome (858858).

The spelling of 613542 in words is "six hundred thirteen thousand, five hundred forty-two".