7187242 has 8 divisors (see below), whose sum is σ = 10880100. Its totient is φ = 3560544.

The previous prime is 7187233. The next prime is 7187251. The reversal of 7187242 is 2427817.

It is an interprime number because it is at equal distance from previous prime (7187233) and next prime (7187251).

It can be written as a sum of positive squares in 2 ways, for example, as 7177041 + 10201 = 2679^2 + 101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16267 + ... + 16702.

Almost surely, 2^7187242 is an apocalyptic number.

7187242 is a deficient number, since it is larger than the sum of its proper divisors (3692858).

7187242 is a wasteful number, since it uses less digits than its factorization.

7187242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33080.

The product of its digits is 6272, while the sum is 31.

The square root of 7187242 is about 2680.9032060110. The cubic root of 7187242 is about 192.9837565862.

The spelling of 7187242 in words is "seven million, one hundred eighty-seven thousand, two hundred forty-two".