200134805 has 8 divisors (see below), whose sum is σ = 258635832. Its totient is φ = 147791808.

The previous prime is 200134787. The next prime is 200134807. The reversal of 200134805 is 508431002.

It can be written as a sum of positive squares in 4 ways, for example, as 38514436 + 161620369 = 6206^2 + 12713^2 .

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 200134805 - 2¹² = 200130709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200134807) 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, 1539434 + ... + 1539563.

It is an arithmetic number, because the mean of its divisors is an integer number (32329479).

Almost surely, 2^200134805 is an apocalyptic number.

It is an amenable number.

200134805 is a deficient number, since it is larger than the sum of its proper divisors (58501027).

200134805 is a wasteful number, since it uses less digits than its factorization.

200134805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079015.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 200134805 is about 14146.9008973697. The cubic root of 200134805 is about 584.9349088705.

Adding to 200134805 its reverse (508431002), we get a palindrome (708565807).

The spelling of 200134805 in words is "two hundred million, one hundred thirty-four thousand, eight hundred five".