511136945 has 8 divisors (see below), whose sum is σ = 669124800. Its totient is φ = 371735920.

The previous prime is 511136939. The next prime is 511136947. The reversal of 511136945 is 549631115.

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

It is not a de Polignac number, because 511136945 - 2²² = 506942641 is a prime.

It is a super-2 number, since 2×511136945² = 522521953087866050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511136947) 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 7 ways as a sum of consecutive naturals, for example, 4646645 + ... + 4646754.

It is an arithmetic number, because the mean of its divisors is an integer number (83640600).

Almost surely, 2^511136945 is an apocalyptic number.

511136945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

511136945 is a deficient number, since it is larger than the sum of its proper divisors (157987855).

511136945 is a wasteful number, since it uses less digits than its factorization.

511136945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9293415.

The product of its digits is 16200, while the sum is 35.

The square root of 511136945 is about 22608.3379530650. The cubic root of 511136945 is about 799.5502393791.

The spelling of 511136945 in words is "five hundred eleven million, one hundred thirty-six thousand, nine hundred forty-five".