972161279 has 2 divisors, whose sum is σ = 972161280. Its totient is φ = 972161278.

The previous prime is 972161249. The next prime is 972161297.

972161279 is nontrivially palindromic in base 10.

Together with next prime (972161297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 972161279 - 2¹⁶ = 972095743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972161219) 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, 486080639 + 486080640.

It is an arithmetic number, because the mean of its divisors is an integer number (486080640).

Almost surely, 2^972161279 is an apocalyptic number.

972161279 is a deficient number, since it is larger than the sum of its proper divisors (1).

972161279 is an equidigital number, since it uses as much as digits as its factorization.

972161279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 44.

The square root of 972161279 is about 31179.5009421254. The cubic root of 972161279 is about 990.6329588324.

The spelling of 972161279 in words is "nine hundred seventy-two million, one hundred sixty-one thousand, two hundred seventy-nine".