126165203 has 2 divisors, whose sum is σ = 126165204. Its totient is φ = 126165202.

The previous prime is 126165197. The next prime is 126165209. The reversal of 126165203 is 302561621.

It is a balanced prime because it is at equal distance from previous prime (126165197) and next prime (126165209).

It is a cyclic number.

It is not a de Polignac number, because 126165203 - 2¹⁰ = 126164179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126165209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63082601 + 63082602.

It is an arithmetic number, because the mean of its divisors is an integer number (63082602).

Almost surely, 2^126165203 is an apocalyptic number.

126165203 is a deficient number, since it is larger than the sum of its proper divisors (1).

126165203 is an equidigital number, since it uses as much as digits as its factorization.

126165203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 126165203 is about 11232.3284763223. The cubic root of 126165203 is about 501.5488014743.

The spelling of 126165203 in words is "one hundred twenty-six million, one hundred sixty-five thousand, two hundred three".