201972079 has 2 divisors, whose sum is σ = 201972080. Its totient is φ = 201972078.

The previous prime is 201972073. The next prime is 201972091. The reversal of 201972079 is 970279102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201972079 - 2¹¹ = 201970031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201972073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100986039 + 100986040.

It is an arithmetic number, because the mean of its divisors is an integer number (100986040).

Almost surely, 2^201972079 is an apocalyptic number.

201972079 is a deficient number, since it is larger than the sum of its proper divisors (1).

201972079 is an equidigital number, since it uses as much as digits as its factorization.

201972079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 201972079 is about 14211.6881122546. The cubic root of 201972079 is about 586.7193956925.

The spelling of 201972079 in words is "two hundred one million, nine hundred seventy-two thousand, seventy-nine".