307142 has 16 divisors (see below), whose sum is σ = 525312. Its totient is φ = 133320.

The previous prime is 307129. The next prime is 307147. The reversal of 307142 is 241703.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 307142.

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 307142.

It is not an unprimeable number, because it can be changed into a prime (307147) 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 7 ways as a sum of consecutive naturals, for example, 203 + ... + 809.

It is an arithmetic number, because the mean of its divisors is an integer number (32832).

2³⁰⁷¹⁴² is an apocalyptic number.

307142 is a deficient number, since it is larger than the sum of its proper divisors (218170).

307142 is a wasteful number, since it uses less digits than its factorization.

307142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 307142 is about 554.2039335840. The cubic root of 307142 is about 67.4703665077.

Adding to 307142 its reverse (241703), we get a palindrome (548845).

It can be divided in two parts, 3071 and 42, that added together give a palindrome (3113).

The spelling of 307142 in words is "three hundred seven thousand, one hundred forty-two", and thus it is an iban number.