2151252 has 24 divisors (see below), whose sum is σ = 5577600. Its totient is φ = 717048.

The previous prime is 2151251. The next prime is 2151263. The reversal of 2151252 is 2521512.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151251) 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, 9852 + ... + 10067.

It is an arithmetic number, because the mean of its divisors is an integer number (232400).

2^2151252 is an apocalyptic number.

It is an amenable number.

2151252 is an abundant number, since it is smaller than the sum of its proper divisors (3426348).

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

2151252 is a wasteful number, since it uses less digits than its factorization.

2151252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19932 (or 19924 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 2151252 is about 1466.7146961833. The cubic root of 2151252 is about 129.0913360731.

Adding to 2151252 its reverse (2521512), we get a palindrome (4672764).

The spelling of 2151252 in words is "two million, one hundred fifty-one thousand, two hundred fifty-two".