513145202 has 4 divisors (see below), whose sum is σ = 769717806. Its totient is φ = 256572600.

The previous prime is 513145183. The next prime is 513145231. The reversal of 513145202 is 202541315.

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

It can be written as a sum of positive squares in only one way, i.e., 291760561 + 221384641 = 17081^2 + 14879^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128286299 + ... + 128286302.

Almost surely, 2^513145202 is an apocalyptic number.

513145202 is a deficient number, since it is larger than the sum of its proper divisors (256572604).

513145202 is a wasteful number, since it uses less digits than its factorization.

513145202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256572603.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 513145202 is about 22652.7084914807. The cubic root of 513145202 is about 800.5960152220.

Adding to 513145202 its reverse (202541315), we get a palindrome (715686517).

The spelling of 513145202 in words is "five hundred thirteen million, one hundred forty-five thousand, two hundred two".