511135140 has 48 divisors (see below), whose sum is σ = 1433601792. Its totient is φ = 136071936.

The previous prime is 511135139. The next prime is 511135147. The reversal of 511135140 is 41531115.

It is a happy number.

It is a super-2 number, since 2×511135140² = 522518262685639200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511135147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30117 + ... + 43923.

It is an arithmetic number, because the mean of its divisors is an integer number (29866704).

Almost surely, 2^511135140 is an apocalyptic number.

It is an amenable number.

511135140 is an abundant number, since it is smaller than the sum of its proper divisors (922466652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511135140 is a wasteful number, since it uses less digits than its factorization.

511135140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436 (or 14434 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 511135140 is about 22608.2980341290. The cubic root of 511135140 is about 799.5492982159.

Adding to 511135140 its reverse (41531115), we get a palindrome (552666255).

The spelling of 511135140 in words is "five hundred eleven million, one hundred thirty-five thousand, one hundred forty".