1252881 has 24 divisors (see below), whose sum is σ = 2161440. Its totient is φ = 715176.

The previous prime is 1252877. The next prime is 1252897. The reversal of 1252881 is 1882521.

It is not a de Polignac number, because 1252881 - 2² = 1252877 is a prime.

It is a super-2 number, since 2×1252881² = 3139421600322, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1252681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850 + ... + 1796.

It is an arithmetic number, because the mean of its divisors is an integer number (90060).

2^1252881 is an apocalyptic number.

It is an amenable number.

1252881 is a deficient number, since it is larger than the sum of its proper divisors (908559).

1252881 is an equidigital number, since it uses as much as digits as its factorization.

1252881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 957 counting only the distinct ones).

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

The square root of 1252881 is about 1119.3216695839. The cubic root of 1252881 is about 107.8044300198.

The spelling of 1252881 in words is "one million, two hundred fifty-two thousand, eight hundred eighty-one".