1284085148 has 12 divisors (see below), whose sum is σ = 2307883032. Its totient is φ = 624690000.

The previous prime is 1284085141. The next prime is 1284085213. The reversal of 1284085148 is 8415804821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284085141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4337978 + ... + 4338273.

It is an arithmetic number, because the mean of its divisors is an integer number (192323586).

Almost surely, 2^1284085148 is an apocalyptic number.

It is an amenable number.

1284085148 is a deficient number, since it is larger than the sum of its proper divisors (1023797884).

1284085148 is a wasteful number, since it uses less digits than its factorization.

1284085148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8676292 (or 8676290 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The square root of 1284085148 is about 35834.1338391205. The cubic root of 1284085148 is about 1086.9209030813.

Adding to 1284085148 its reverse (8415804821), we get a palindrome (9699889969).

The spelling of 1284085148 in words is "one billion, two hundred eighty-four million, eighty-five thousand, one hundred forty-eight".