40175189 has 2 divisors, whose sum is σ = 40175190. Its totient is φ = 40175188.

The previous prime is 40175171. The next prime is 40175197. The reversal of 40175189 is 98157104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33258289 + 6916900 = 5767^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 40175189 - 2¹² = 40171093 is a prime.

It is a super-2 number, since 2×40175189² = 3228091622371442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40175119) 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, 20087594 + 20087595.

It is an arithmetic number, because the mean of its divisors is an integer number (20087595).

Almost surely, 2^40175189 is an apocalyptic number.

It is an amenable number.

40175189 is a deficient number, since it is larger than the sum of its proper divisors (1).

40175189 is an equidigital number, since it uses as much as digits as its factorization.

40175189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 40175189 is about 6338.3900952844. The cubic root of 40175189 is about 342.4937438252.

The spelling of 40175189 in words is "forty million, one hundred seventy-five thousand, one hundred eighty-nine".