1281852 has 96 divisors (see below), whose sum is σ = 3951360. Its totient is φ = 354240.

The previous prime is 1281827. The next prime is 1281853. The reversal of 1281852 is 2581821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15403 + ... + 15485.

It is an arithmetic number, because the mean of its divisors is an integer number (41160).

2^1281852 is an apocalyptic number.

1281852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1281852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975680).

1281852 is an abundant number, since it is smaller than the sum of its proper divisors (2669508).

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

1281852 is a wasteful number, since it uses less digits than its factorization.

1281852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 112 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 1281852 is about 1132.1890301535. The cubic root of 1281852 is about 108.6290450684.

The spelling of 1281852 in words is "one million, two hundred eighty-one thousand, eight hundred fifty-two".