513657198 has 12 divisors (see below), whose sum is σ = 1112923968. Its totient is φ = 171219060.

The previous prime is 513657187. The next prime is 513657211. The reversal of 513657198 is 891756315.

It is a happy number.

513657198 is a `hidden beast` number, since 513 + 65 + 71 + 9 + 8 = 666.

It is a super-2 number, since 2×513657198² = 527687434114422408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14268238 + ... + 14268273.

It is an arithmetic number, because the mean of its divisors is an integer number (92743664).

Almost surely, 2^513657198 is an apocalyptic number.

513657198 is an abundant number, since it is smaller than the sum of its proper divisors (599266770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513657198 is a wasteful number, since it uses less digits than its factorization.

513657198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28536519 (or 28536516 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 513657198 is about 22664.0066625476. The cubic root of 513657198 is about 800.8621944005.

The spelling of 513657198 in words is "five hundred thirteen million, six hundred fifty-seven thousand, one hundred ninety-eight".