616542 has 16 divisors (see below), whose sum is σ = 1241472. Its totient is φ = 204120.

The previous prime is 616537. The next prime is 616547. The reversal of 616542 is 245616.

616542 is nontrivially palindromic in base 15.

616542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (616537) and next prime (616547).

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 616542.

It is not an unprimeable number, because it can be changed into a prime (616547) by changing a digit.

616542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023 + ... + 1509.

It is an arithmetic number, because the mean of its divisors is an integer number (77592).

2⁶¹⁶⁵⁴² is an apocalyptic number.

616542 is an abundant number, since it is smaller than the sum of its proper divisors (624930).

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

616542 is a wasteful number, since it uses less digits than its factorization.

616542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its digits is 1440, while the sum is 24.

The square root of 616542 is about 785.2018848678. The cubic root of 616542 is about 85.1113649858. Note that the first 3 decimals are identical.

The spelling of 616542 in words is "six hundred sixteen thousand, five hundred forty-two".