513381277 has 4 divisors (see below), whose sum is σ = 514435936. Its totient is φ = 512326620.

The previous prime is 513381251. The next prime is 513381289. The reversal of 513381277 is 772183315.

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: 772183315 = 5 ⋅154436663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513381277 is a prime.

It is a super-3 number, since 3×513381277³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513381217) 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, 526599 + ... + 527572.

It is an arithmetic number, because the mean of its divisors is an integer number (128608984).

Almost surely, 2^513381277 is an apocalyptic number.

It is an amenable number.

513381277 is a deficient number, since it is larger than the sum of its proper divisors (1054659).

513381277 is a wasteful number, since it uses less digits than its factorization.

513381277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054658.

The product of its digits is 35280, while the sum is 37.

The square root of 513381277 is about 22657.9186378626. The cubic root of 513381277 is about 800.7187691244.

The spelling of 513381277 in words is "five hundred thirteen million, three hundred eighty-one thousand, two hundred seventy-seven".