302015142 has 80 divisors (see below), whose sum is σ = 795109392. Its totient is φ = 84473280.

The previous prime is 302015141. The next prime is 302015167. The reversal of 302015142 is 241510203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302015141) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16648 + ... + 29684.

Almost surely, 2^302015142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302015142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397554696).

302015142 is an abundant number, since it is smaller than the sum of its proper divisors (493094250).

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

302015142 is a wasteful number, since it uses less digits than its factorization.

302015142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13075 (or 13066 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 302015142 is about 17378.5828536161. The cubic root of 302015142 is about 670.9284980776.

Adding to 302015142 its reverse (241510203), we get a palindrome (543525345).

The spelling of 302015142 in words is "three hundred two million, fifteen thousand, one hundred forty-two".