975132281 has 2 divisors, whose sum is σ = 975132282. Its totient is φ = 975132280.

The previous prime is 975132253. The next prime is 975132287. The reversal of 975132281 is 182231579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 871194256 + 103938025 = 29516^2 + 10195^2 .

It is a cyclic number.

It is not a de Polignac number, because 975132281 - 2⁶ = 975132217 is a prime.

It is a super-2 number, since 2×975132281² = 1901765930896525922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_49646720 and since 975132281 and 49646720 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (975132287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487566140 + 487566141.

It is an arithmetic number, because the mean of its divisors is an integer number (487566141).

Almost surely, 2^975132281 is an apocalyptic number.

It is an amenable number.

975132281 is a deficient number, since it is larger than the sum of its proper divisors (1).

975132281 is an equidigital number, since it uses as much as digits as its factorization.

975132281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 975132281 is about 31227.1081113830. The cubic root of 975132281 is about 991.6410835321.

The spelling of 975132281 in words is "nine hundred seventy-five million, one hundred thirty-two thousand, two hundred eighty-one".