131634203 has 2 divisors, whose sum is σ = 131634204. Its totient is φ = 131634202.

The previous prime is 131634193. The next prime is 131634227. The reversal of 131634203 is 302436131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131634203 - 2¹⁰ = 131633179 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (131624203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65817101 + 65817102.

It is an arithmetic number, because the mean of its divisors is an integer number (65817102).

Almost surely, 2^131634203 is an apocalyptic number.

131634203 is a deficient number, since it is larger than the sum of its proper divisors (1).

131634203 is an equidigital number, since it uses as much as digits as its factorization.

131634203 is an evil number, because the sum of its binary digits is even.

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

The square root of 131634203 is about 11473.1949778604. The cubic root of 131634203 is about 508.6935715676.

The spelling of 131634203 in words is "one hundred thirty-one million, six hundred thirty-four thousand, two hundred three".