203134631 has 8 divisors (see below), whose sum is σ = 232520064. Its totient is φ = 173840760.

The previous prime is 203134627. The next prime is 203134639. The reversal of 203134631 is 136431302.

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 203134631 - 2² = 203134627 is a prime.

It is a super-2 number, since 2×203134631² = 82527356623012322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203134597 and 203134606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203134639) 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, 18065 + ... + 27066.

It is an arithmetic number, because the mean of its divisors is an integer number (29065008).

Almost surely, 2^203134631 is an apocalyptic number.

203134631 is a deficient number, since it is larger than the sum of its proper divisors (29385433).

203134631 is an equidigital number, since it uses as much as digits as its factorization.

203134631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45781.

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

The square root of 203134631 is about 14252.5306875656. The cubic root of 203134631 is about 587.8429623287.

Adding to 203134631 its reverse (136431302), we get a palindrome (339565933).

The spelling of 203134631 in words is "two hundred three million, one hundred thirty-four thousand, six hundred thirty-one".