7216251 has 8 divisors (see below), whose sum is σ = 10996224. Its totient is φ = 4123560.

The previous prime is 7216247. The next prime is 7216277. The reversal of 7216251 is 1526127.

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

It is not a de Polignac number, because 7216251 - 2² = 7216247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7216241) 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, 171795 + ... + 171836.

It is an arithmetic number, because the mean of its divisors is an integer number (1374528).

Almost surely, 2^7216251 is an apocalyptic number.

7216251 is a deficient number, since it is larger than the sum of its proper divisors (3779973).

7216251 is a wasteful number, since it uses less digits than its factorization.

7216251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343641.

The product of its digits is 840, while the sum is 24.

The square root of 7216251 is about 2686.3080612618. The cubic root of 7216251 is about 193.2430470887.

The spelling of 7216251 in words is "seven million, two hundred sixteen thousand, two hundred fifty-one".