512972461 has 4 divisors (see below), whose sum is σ = 513042624. Its totient is φ = 512902300.

The previous prime is 512972459. The next prime is 512972513. The reversal of 512972461 is 164279215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164279215 = 5 ⋅32855843.

It is a cyclic number.

It is not a de Polignac number, because 512972461 - 2¹ = 512972459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 512972461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512972261) 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 3 ways as a sum of consecutive naturals, for example, 22645 + ... + 39226.

It is an arithmetic number, because the mean of its divisors is an integer number (128260656).

Almost surely, 2^512972461 is an apocalyptic number.

It is an amenable number.

512972461 is a deficient number, since it is larger than the sum of its proper divisors (70163).

512972461 is an equidigital number, since it uses as much as digits as its factorization.

512972461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70162.

The product of its digits is 30240, while the sum is 37.

The square root of 512972461 is about 22648.8953593768. The cubic root of 512972461 is about 800.5061697768.

The spelling of 512972461 in words is "five hundred twelve million, nine hundred seventy-two thousand, four hundred sixty-one".