511249229 has 2 divisors, whose sum is σ = 511249230. Its totient is φ = 511249228.

The previous prime is 511249223. The next prime is 511249243. The reversal of 511249229 is 922942115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367297225 + 143952004 = 19165^2 + 11998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511249229 is a prime.

It is a super-2 number, since 2×511249229² = 522751548306188882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511249223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255624614 + 255624615.

It is an arithmetic number, because the mean of its divisors is an integer number (255624615).

Almost surely, 2^511249229 is an apocalyptic number.

It is an amenable number.

511249229 is a deficient number, since it is larger than the sum of its proper divisors (1).

511249229 is an equidigital number, since it uses as much as digits as its factorization.

511249229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 511249229 is about 22610.8210598377. The cubic root of 511249229 is about 799.6087821544.

The spelling of 511249229 in words is "five hundred eleven million, two hundred forty-nine thousand, two hundred twenty-nine".