975181 has 2 divisors, whose sum is σ = 975182. Its totient is φ = 975180.

The previous prime is 975157. The next prime is 975187. The reversal of 975181 is 181579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 933156 + 42025 = 966^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 975181 - 2⁷ = 975053 is a prime.

It is a super-2 number, since 2×975181² = 1901955965522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487590 + 487591.

It is an arithmetic number, because the mean of its divisors is an integer number (487591).

2⁹⁷⁵¹⁸¹ is an apocalyptic number.

It is an amenable number.

975181 is a deficient number, since it is larger than the sum of its proper divisors (1).

975181 is an equidigital number, since it uses as much as digits as its factorization.

975181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 31.

The square root of 975181 is about 987.5125315661. The cubic root of 975181 is about 99.1657597858.

It can be divided in two parts, 975 and 181, that added together give a square (1156 = 34²).

The spelling of 975181 in words is "nine hundred seventy-five thousand, one hundred eighty-one".