201634313 has 4 divisors (see below), whose sum is σ = 205438788. Its totient is φ = 197829840.

The previous prime is 201634309. The next prime is 201634319. The reversal of 201634313 is 313436102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 133934329 + 67699984 = 11573^2 + 8228^2 .

It is a cyclic number.

It is not a de Polignac number, because 201634313 - 2² = 201634309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201634319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902158 + ... + 1902263.

It is an arithmetic number, because the mean of its divisors is an integer number (51359697).

Almost surely, 2^201634313 is an apocalyptic number.

It is an amenable number.

201634313 is a deficient number, since it is larger than the sum of its proper divisors (3804475).

201634313 is an equidigital number, since it uses as much as digits as its factorization.

201634313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804474.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 201634313 is about 14199.7997521092. The cubic root of 201634313 is about 586.3921484174.

The spelling of 201634313 in words is "two hundred one million, six hundred thirty-four thousand, three hundred thirteen".