1252872 has 24 divisors (see below), whose sum is σ = 3393390. Its totient is φ = 417600.

The previous prime is 1252843. The next prime is 1252873. The reversal of 1252872 is 2782521.

It can be written as a sum of positive squares in only one way, i.e., 1028196 + 224676 = 1014^2 + 474^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1252873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8629 + ... + 8772.

2^1252872 is an apocalyptic number.

1252872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252872 is an abundant number, since it is smaller than the sum of its proper divisors (2140518).

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

1252872 is a wasteful number, since it uses less digits than its factorization.

1252872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17413 (or 17406 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 1252872 is about 1119.3176492846. The cubic root of 1252872 is about 107.8041718835.

The spelling of 1252872 in words is "one million, two hundred fifty-two thousand, eight hundred seventy-two".