975121457 has 2 divisors, whose sum is σ = 975121458. Its totient is φ = 975121456.

The previous prime is 975121453. The next prime is 975121531. The reversal of 975121457 is 754121579.

975121457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839608576 + 135512881 = 28976^2 + 11641^2 .

It is a cyclic number.

It is not a de Polignac number, because 975121457 - 2² = 975121453 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (975121453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487560728 + 487560729.

It is an arithmetic number, because the mean of its divisors is an integer number (487560729).

Almost surely, 2^975121457 is an apocalyptic number.

It is an amenable number.

975121457 is a deficient number, since it is larger than the sum of its proper divisors (1).

975121457 is an equidigital number, since it uses as much as digits as its factorization.

975121457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 41.

The square root of 975121457 is about 31226.9347999447. The cubic root of 975121457 is about 991.6374144358.

The spelling of 975121457 in words is "nine hundred seventy-five million, one hundred twenty-one thousand, four hundred fifty-seven".