206513134 has 24 divisors (see below), whose sum is σ = 322804440. Its totient is φ = 99078480.

The previous prime is 206513107. The next prime is 206513143. The reversal of 206513134 is 431315602.

It is a junction number, because it is equal to n+sod(n) for n = 206513099 and 206513108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266772 + ... + 267544.

It is an arithmetic number, because the mean of its divisors is an integer number (13450185).

Almost surely, 2^206513134 is an apocalyptic number.

206513134 is a deficient number, since it is larger than the sum of its proper divisors (116291306).

206513134 is a wasteful number, since it uses less digits than its factorization.

206513134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 206513134 is about 14370.5648462404. The cubic root of 206513134 is about 591.0840302222.

Adding to 206513134 its reverse (431315602), we get a palindrome (637828736).

The spelling of 206513134 in words is "two hundred six million, five hundred thirteen thousand, one hundred thirty-four".