5216149 has 4 divisors (see below), whose sum is σ = 5357164. Its totient is φ = 5075136.

The previous prime is 5216137. The next prime is 5216173. The reversal of 5216149 is 9416125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2387025 + 2829124 = 1545^2 + 1682^2 .

It is a cyclic number.

It is not a de Polignac number, because 5216149 - 2⁷ = 5216021 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216119) 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, 70452 + ... + 70525.

It is an arithmetic number, because the mean of its divisors is an integer number (1339291).

Almost surely, 2^5216149 is an apocalyptic number.

It is an amenable number.

5216149 is a deficient number, since it is larger than the sum of its proper divisors (141015).

5216149 is a wasteful number, since it uses less digits than its factorization.

5216149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141014.

The product of its digits is 2160, while the sum is 28.

The square root of 5216149 is about 2283.8890078110. The cubic root of 5216149 is about 173.4269805432.

It can be divided in two parts, 521 and 6149, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 5216149 in words is "five million, two hundred sixteen thousand, one hundred forty-nine".