972201071 has 2 divisors, whose sum is σ = 972201072. Its totient is φ = 972201070.

The previous prime is 972201031. The next prime is 972201073. The reversal of 972201071 is 170102279.

It is a strong prime.

It is an emirp because it is prime and its reverse (170102279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 972201071 - 2¹⁸ = 971938927 is a prime.

It is a Sophie Germain prime.

Together with 972201073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972201073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486100535 + 486100536.

It is an arithmetic number, because the mean of its divisors is an integer number (486100536).

Almost surely, 2^972201071 is an apocalyptic number.

972201071 is a deficient number, since it is larger than the sum of its proper divisors (1).

972201071 is an equidigital number, since it uses as much as digits as its factorization.

972201071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 972201071 is about 31180.1390471563. The cubic root of 972201071 is about 990.6464746724.

The spelling of 972201071 in words is "nine hundred seventy-two million, two hundred one thousand, seventy-one".