129450203 has 8 divisors (see below), whose sum is σ = 135238656. Its totient is φ = 123762600.

The previous prime is 129450197. The next prime is 129450239. The reversal of 129450203 is 302054921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129450203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129450263) 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, 22583 + ... + 27728.

It is an arithmetic number, because the mean of its divisors is an integer number (16904832).

Almost surely, 2^129450203 is an apocalyptic number.

129450203 is a deficient number, since it is larger than the sum of its proper divisors (5788453).

129450203 is an equidigital number, since it uses as much as digits as its factorization.

129450203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50425.

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

The square root of 129450203 is about 11377.6185117976. The cubic root of 129450203 is about 505.8645491934.

The spelling of 129450203 in words is "one hundred twenty-nine million, four hundred fifty thousand, two hundred three".