40717161 has 15 divisors (see below), whose sum is σ = 60910311. Its totient is φ = 27106488.

The previous prime is 40717129. The next prime is 40717207. The reversal of 40717161 is 16171704.

The square root of 40717161 is 6381.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5433561 + 35283600 = 2331^2 + 5940^2 .

It is not a de Polignac number, because 40717161 - 2⁵ = 40717129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40717111) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 57075 + ... + 57783.

Almost surely, 2^40717161 is an apocalyptic number.

40717161 is the 6381-st square number.

40717161 is the 3191-st centered octagonal number.

It is an amenable number.

40717161 is a deficient number, since it is larger than the sum of its proper divisors (20193150).

40717161 is an frugal number, since it uses more digits than its factorization.

40717161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The cubic root of 40717161 is about 344.0269747416.

Adding to 40717161 its reverse (16171704), we get a palindrome (56888865).

The spelling of 40717161 in words is "forty million, seven hundred seventeen thousand, one hundred sixty-one".