972241069 has 2 divisors, whose sum is σ = 972241070. Its totient is φ = 972241068.

The previous prime is 972241031. The next prime is 972241079. The reversal of 972241069 is 960142279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791015625 + 181225444 = 28125^2 + 13462^2 .

It is an emirp because it is prime and its reverse (960142279) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972241069 is a prime.

It is a super-2 number, since 2×972241069² = 1890505392500525522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972241019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486120534 + 486120535.

It is an arithmetic number, because the mean of its divisors is an integer number (486120535).

Almost surely, 2^972241069 is an apocalyptic number.

It is an amenable number.

972241069 is a deficient number, since it is larger than the sum of its proper divisors (1).

972241069 is an equidigital number, since it uses as much as digits as its factorization.

972241069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 972241069 is about 31180.7804424456. The cubic root of 972241069 is about 990.6600601111.

The spelling of 972241069 in words is "nine hundred seventy-two million, two hundred forty-one thousand, sixty-nine".