7216541 has 4 divisors (see below), whose sum is σ = 7231392. Its totient is φ = 7201692.

The previous prime is 7216537. The next prime is 7216543. The reversal of 7216541 is 1456127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7216541 - 2² = 7216537 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7216541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7216543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6671 + ... + 7676.

It is an arithmetic number, because the mean of its divisors is an integer number (1807848).

Almost surely, 2^7216541 is an apocalyptic number.

It is an amenable number.

7216541 is a deficient number, since it is larger than the sum of its proper divisors (14851).

7216541 is a wasteful number, since it uses less digits than its factorization.

7216541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14850.

The product of its digits is 1680, while the sum is 26.

The square root of 7216541 is about 2686.3620381475. The cubic root of 7216541 is about 193.2456356781.

The spelling of 7216541 in words is "seven million, two hundred sixteen thousand, five hundred forty-one".