1278132 has 24 divisors (see below), whose sum is σ = 3052896. Its totient is φ = 415968.

The previous prime is 1278131. The next prime is 1278139. The reversal of 1278132 is 2318721.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1278131) 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, 723 + ... + 1754.

It is an arithmetic number, because the mean of its divisors is an integer number (127204).

2^1278132 is an apocalyptic number.

1278132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1278132 is an abundant number, since it is smaller than the sum of its proper divisors (1774764).

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

1278132 is a wasteful number, since it uses less digits than its factorization.

1278132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527 (or 2525 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 1278132 is about 1130.5450013157. The cubic root of 1278132 is about 108.5238609064.

The spelling of 1278132 in words is "one million, two hundred seventy-eight thousand, one hundred thirty-two".