513771073 has 4 divisors (see below), whose sum is σ = 519067780. Its totient is φ = 508474368.

The previous prime is 513771061. The next prime is 513771103. The reversal of 513771073 is 370177315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 398681089 + 115089984 = 19967^2 + 10728^2 .

It is a cyclic number.

It is not a de Polignac number, because 513771073 - 2¹³ = 513762881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513771023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2648208 + ... + 2648401.

It is an arithmetic number, because the mean of its divisors is an integer number (129766945).

Almost surely, 2^513771073 is an apocalyptic number.

It is an amenable number.

513771073 is a deficient number, since it is larger than the sum of its proper divisors (5296707).

513771073 is an equidigital number, since it uses as much as digits as its factorization.

513771073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5296706.

The product of its (nonzero) digits is 15435, while the sum is 34.

The square root of 513771073 is about 22666.5187666743. The cubic root of 513771073 is about 800.9213722882.

The spelling of 513771073 in words is "five hundred thirteen million, seven hundred seventy-one thousand, seventy-three".