617142 has 16 divisors (see below), whose sum is σ = 1252080. Its totient is φ = 202752.

The previous prime is 617131. The next prime is 617147. The reversal of 617142 is 241716.

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 617142.

It is not an unprimeable number, because it can be changed into a prime (617147) by changing a digit.

617142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 267 + ... + 1142.

It is an arithmetic number, because the mean of its divisors is an integer number (78255).

2⁶¹⁷¹⁴² is an apocalyptic number.

617142 is an abundant number, since it is smaller than the sum of its proper divisors (634938).

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

617142 is a wasteful number, since it uses less digits than its factorization.

617142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487.

The product of its digits is 336, while the sum is 21.

The square root of 617142 is about 785.5838593047. The cubic root of 617142 is about 85.1389653020.

Adding to 617142 its reverse (241716), we get a palindrome (858858).

It can be divided in two parts, 61714 and 2, that added together give a palindrome (61716).

The spelling of 617142 in words is "six hundred seventeen thousand, one hundred forty-two".