1280148 has 24 divisors (see below), whose sum is σ = 3017952. Its totient is φ = 422304.

The previous prime is 1280141. The next prime is 1280159. The reversal of 1280148 is 8410821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280141) 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, 786 + ... + 1782.

It is an arithmetic number, because the mean of its divisors is an integer number (125748).

2^1280148 is an apocalyptic number.

It is an amenable number.

1280148 is an abundant number, since it is smaller than the sum of its proper divisors (1737804).

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

1280148 is a wasteful number, since it uses less digits than its factorization.

1280148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1280148 is about 1131.4362553852. The cubic root of 1280148 is about 108.5808892297.

Adding to 1280148 its reverse (8410821), we get a palindrome (9690969).

The spelling of 1280148 in words is "one million, two hundred eighty thousand, one hundred forty-eight".