303142 has 16 divisors (see below), whose sum is σ = 529920. Its totient is φ = 127368.

The previous prime is 303139. The next prime is 303143. The reversal of 303142 is 241303.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303143) 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, 643 + ... + 1009.

It is an arithmetic number, because the mean of its divisors is an integer number (33120).

2³⁰³¹⁴² is an apocalyptic number.

303142 is a deficient number, since it is larger than the sum of its proper divisors (226778).

303142 is a wasteful number, since it uses less digits than its factorization.

303142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 303142 is about 550.5833270269. The cubic root of 303142 is about 67.1761903083.

Adding to 303142 its reverse (241303), we get a palindrome (544445).

The spelling of 303142 in words is "three hundred three thousand, one hundred forty-two", and thus it is an iban number.