513462421 has 2 divisors, whose sum is σ = 513462422. Its totient is φ = 513462420.

The previous prime is 513462409. The next prime is 513462457. The reversal of 513462421 is 124264315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342768196 + 170694225 = 18514^2 + 13065^2 .

It is a cyclic number.

It is not a de Polignac number, because 513462421 - 2¹¹ = 513460373 is a prime.

It is a super-3 number, since 3×513462421³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 513462421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513462461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256731210 + 256731211.

It is an arithmetic number, because the mean of its divisors is an integer number (256731211).

Almost surely, 2^513462421 is an apocalyptic number.

It is an amenable number.

513462421 is a deficient number, since it is larger than the sum of its proper divisors (1).

513462421 is an equidigital number, since it uses as much as digits as its factorization.

513462421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 513462421 is about 22659.7091993697. The cubic root of 513462421 is about 800.7609535618.

The spelling of 513462421 in words is "five hundred thirteen million, four hundred sixty-two thousand, four hundred twenty-one".