511340245 has 8 divisors (see below), whose sum is σ = 660809016. Its totient is φ = 377605056.

The previous prime is 511340239. The next prime is 511340279. The reversal of 511340245 is 542043115.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28483569 + 482856676 = 5337^2 + 21974^2 .

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 511340245 - 2¹³ = 511332053 is a prime.

It is a super-2 number, since 2×511340245² = 522937692313320050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3933322 + ... + 3933451.

It is an arithmetic number, because the mean of its divisors is an integer number (82601127).

Almost surely, 2^511340245 is an apocalyptic number.

It is an amenable number.

511340245 is a deficient number, since it is larger than the sum of its proper divisors (149468771).

511340245 is a wasteful number, since it uses less digits than its factorization.

511340245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866791.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 511340245 is about 22612.8336349074. The cubic root of 511340245 is about 799.6562299030.

The spelling of 511340245 in words is "five hundred eleven million, three hundred forty thousand, two hundred forty-five".