7191252 has 36 divisors (see below), whose sum is σ = 18525780. Its totient is φ = 2351232.

The previous prime is 7191251. The next prime is 7191281. The reversal of 7191252 is 2521917.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 1602756 = 2364^2 + 1266^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7191251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24 + ... + 3792.

It is an arithmetic number, because the mean of its divisors is an integer number (514605).

Almost surely, 2^7191252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7191252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9262890).

7191252 is an abundant number, since it is smaller than the sum of its proper divisors (11334528).

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

7191252 is a wasteful number, since it uses less digits than its factorization.

7191252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832 (or 3827 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 7191252 is about 2681.6509840022. The cubic root of 7191252 is about 193.0196405867.

The spelling of 7191252 in words is "seven million, one hundred ninety-one thousand, two hundred fifty-two".