522149 has 4 divisors (see below), whose sum is σ = 534336. Its totient is φ = 509964.

The previous prime is 522127. The next prime is 522157. The reversal of 522149 is 941225.

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 522149 - 2¹⁶ = 456613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522199) 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, 6029 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (133584).

2⁵²²¹⁴⁹ is an apocalyptic number.

It is an amenable number.

522149 is a deficient number, since it is larger than the sum of its proper divisors (12187).

522149 is a wasteful number, since it uses less digits than its factorization.

522149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12186.

The product of its digits is 720, while the sum is 23.

The square root of 522149 is about 722.5987821745. The cubic root of 522149 is about 80.5251390694.

The spelling of 522149 in words is "five hundred twenty-two thousand, one hundred forty-nine".