204134531 has 8 divisors (see below), whose sum is σ = 209794704. Its totient is φ = 198506880.

The previous prime is 204134507. The next prime is 204134569. The reversal of 204134531 is 135431402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204134531 - 2⁶ = 204134467 is a prime.

It is a super-2 number, since 2×204134531² = 83341813493179922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204134497 and 204134506.

It is not an unprimeable number, because it can be changed into a prime (204134501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4880 + ... + 20786.

It is an arithmetic number, because the mean of its divisors is an integer number (26224338).

Almost surely, 2^204134531 is an apocalyptic number.

204134531 is a deficient number, since it is larger than the sum of its proper divisors (5660173).

204134531 is a wasteful number, since it uses less digits than its factorization.

204134531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16261.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 204134531 is about 14287.5656078984. The cubic root of 204134531 is about 588.8059072439.

Adding to 204134531 its reverse (135431402), we get a palindrome (339565933).

The spelling of 204134531 in words is "two hundred four million, one hundred thirty-four thousand, five hundred thirty-one".