1302143228 has 6 divisors (see below), whose sum is σ = 2278750656. Its totient is φ = 651071612.

The previous prime is 1302143177. The next prime is 1302143233. The reversal of 1302143228 is 8223412031.

It is a junction number, because it is equal to n+sod(n) for n = 1302143197 and 1302143206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162767900 + ... + 162767907.

It is an arithmetic number, because the mean of its divisors is an integer number (379791776).

Almost surely, 2^1302143228 is an apocalyptic number.

It is an amenable number.

1302143228 is a deficient number, since it is larger than the sum of its proper divisors (976607428).

1302143228 is a wasteful number, since it uses less digits than its factorization.

1302143228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325535811 (or 325535809 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1302143228 is about 36085.2217396540. The cubic root of 1302143228 is about 1091.9923239631.

Adding to 1302143228 its reverse (8223412031), we get a palindrome (9525555259).

The spelling of 1302143228 in words is "one billion, three hundred two million, one hundred forty-three thousand, two hundred twenty-eight".