975312901 has 2 divisors, whose sum is σ = 975312902. Its totient is φ = 975312900.

The previous prime is 975312857. The next prime is 975312911. The reversal of 975312901 is 109213579.

It is a Cunningham number, because it is equal to 31230²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 975312900 + 1 = 31230^2 + 1^2 .

It is an emirp because it is prime and its reverse (109213579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 975312901 - 2⁷ = 975312773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975312911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487656450 + 487656451.

It is an arithmetic number, because the mean of its divisors is an integer number (487656451).

Almost surely, 2^975312901 is an apocalyptic number.

It is an amenable number.

975312901 is a deficient number, since it is larger than the sum of its proper divisors (1).

975312901 is an equidigital number, since it uses as much as digits as its factorization.

975312901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 975312901 is about 31230.0000160102. Note that the first 4 decimals coincide. The cubic root of 975312901 is about 991.7023057063.

The spelling of 975312901 in words is "nine hundred seventy-five million, three hundred twelve thousand, nine hundred one".