2157252 has 24 divisors (see below), whose sum is σ = 5208000. Its totient is φ = 694176.

The previous prime is 2157251. The next prime is 2157257. The reversal of 2157252 is 2527512.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 5⁷ + 7⁶ + 2⁷ + 5⁹ + 2¹³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157251) 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, 2752 + ... + 3447.

It is an arithmetic number, because the mean of its divisors is an integer number (217000).

2^2157252 is an apocalyptic number.

It is an amenable number.

2157252 is an abundant number, since it is smaller than the sum of its proper divisors (3050748).

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

2157252 is a wasteful number, since it uses less digits than its factorization.

2157252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6235 (or 6233 counting only the distinct ones).

The product of its digits is 1400, while the sum is 24.

The square root of 2157252 is about 1468.7586595489. The cubic root of 2157252 is about 129.2112397446.

The spelling of 2157252 in words is "two million, one hundred fifty-seven thousand, two hundred fifty-two".