975095221 has 2 divisors, whose sum is σ = 975095222. Its totient is φ = 975095220.

The previous prime is 975095179. The next prime is 975095273. The reversal of 975095221 is 122590579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 821682225 + 153412996 = 28665^2 + 12386^2 .

It is a cyclic number.

It is not a de Polignac number, because 975095221 - 2²¹ = 972998069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975095021) 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, 487547610 + 487547611.

It is an arithmetic number, because the mean of its divisors is an integer number (487547611).

Almost surely, 2^975095221 is an apocalyptic number.

It is an amenable number.

975095221 is a deficient number, since it is larger than the sum of its proper divisors (1).

975095221 is an equidigital number, since it uses as much as digits as its factorization.

975095221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 975095221 is about 31226.5147110593. The cubic root of 975095221 is about 991.6285209001.

The spelling of 975095221 in words is "nine hundred seventy-five million, ninety-five thousand, two hundred twenty-one".