513303145 has 32 divisors (see below), whose sum is σ = 668062080. Its totient is φ = 377395200.

The previous prime is 513303101. The next prime is 513303163. The reversal of 513303145 is 541303315.

It is not a de Polignac number, because 513303145 - 2²³ = 504914537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487870 + ... + 488920.

It is an arithmetic number, because the mean of its divisors is an integer number (20876940).

Almost surely, 2^513303145 is an apocalyptic number.

It is an amenable number.

513303145 is a deficient number, since it is larger than the sum of its proper divisors (154758935).

513303145 is a wasteful number, since it uses less digits than its factorization.

513303145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 513303145 is about 22656.1944068283. The cubic root of 513303145 is about 800.6781463387.

The spelling of 513303145 in words is "five hundred thirteen million, three hundred three thousand, one hundred forty-five".