206430134 has 4 divisors (see below), whose sum is σ = 309645204. Its totient is φ = 103215066.

The previous prime is 206430131. The next prime is 206430179. The reversal of 206430134 is 431034602.

It is a happy number.

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

It is a super-2 number, since 2×206430134² = 85226800446515912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206430131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51607532 + ... + 51607535.

It is an arithmetic number, because the mean of its divisors is an integer number (77411301).

Almost surely, 2^206430134 is an apocalyptic number.

206430134 is a deficient number, since it is larger than the sum of its proper divisors (103215070).

206430134 is a wasteful number, since it uses less digits than its factorization.

206430134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103215069.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 206430134 is about 14367.6767085009. The cubic root of 206430134 is about 591.0048317912.

Adding to 206430134 its reverse (431034602), we get a palindrome (637464736).

The spelling of 206430134 in words is "two hundred six million, four hundred thirty thousand, one hundred thirty-four".