511338241 has 16 divisors (see below), whose sum is σ = 552207040. Its totient is φ = 471925440.

The previous prime is 511338161. The next prime is 511338259. The reversal of 511338241 is 142833115.

It is a happy number.

It is a 3-Lehmer number, since φ(511338241) divides (511338241-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 511338241 - 2²⁵ = 477783809 is a prime.

It is a super-2 number, since 2×511338241² = 522933593417948162, which contains 22 as substring.

It is a deceptive number, since it divides R_511338240.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511338281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500311 + ... + 501331.

It is an arithmetic number, because the mean of its divisors is an integer number (34512940).

It is a Poulet number, since it divides 2^511338240-1.

Almost surely, 2^511338241 is an apocalyptic number.

511338241 is the 13056-th hex number.

It is an amenable number.

511338241 is a deficient number, since it is larger than the sum of its proper divisors (40868799).

511338241 is a wasteful number, since it uses less digits than its factorization.

511338241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696.

The product of its digits is 2880, while the sum is 28.

The square root of 511338241 is about 22612.7893237433. The cubic root of 511338241 is about 799.6551852540.

The spelling of 511338241 in words is "five hundred eleven million, three hundred thirty-eight thousand, two hundred forty-one".