972129203 has 2 divisors, whose sum is σ = 972129204. Its totient is φ = 972129202.

The previous prime is 972129199. The next prime is 972129307. The reversal of 972129203 is 302921279.

It is a weak prime.

It is an emirp because it is prime and its reverse (302921279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 972129203 - 2² = 972129199 is a prime.

It is not a weakly prime, because it can be changed into another prime (972029203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486064601 + 486064602.

It is an arithmetic number, because the mean of its divisors is an integer number (486064602).

Almost surely, 2^972129203 is an apocalyptic number.

972129203 is a deficient number, since it is larger than the sum of its proper divisors (1).

972129203 is an equidigital number, since it uses as much as digits as its factorization.

972129203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 972129203 is about 31178.9865614648. The cubic root of 972129203 is about 990.6220635578.

The spelling of 972129203 in words is "nine hundred seventy-two million, one hundred twenty-nine thousand, two hundred three".