511229 has 8 divisors (see below), whose sum is σ = 539448. Its totient is φ = 483840.

The previous prime is 511223. The next prime is 511237. The reversal of 511229 is 922115.

It can be written as a sum of positive squares in 4 ways, for example, as 24025 + 487204 = 155^2 + 698^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 511229 - 2⁴ = 511213 is a prime.

It is a super-2 number, since 2×511229² = 522710180882, which contains 22 as substring.

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 511229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511223) 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, 1349 + ... + 1685.

It is an arithmetic number, because the mean of its divisors is an integer number (67431).

2⁵¹¹²²⁹ is an apocalyptic number.

It is an amenable number.

511229 is a deficient number, since it is larger than the sum of its proper divisors (28219).

511229 is a wasteful number, since it uses less digits than its factorization.

511229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 180, while the sum is 20.

The square root of 511229 is about 715.0027971973. The cubic root of 511229 is about 79.9598235766.

The spelling of 511229 in words is "five hundred eleven thousand, two hundred twenty-nine".