40151171 has 2 divisors, whose sum is σ = 40151172. Its totient is φ = 40151170.

The previous prime is 40151159. The next prime is 40151173. The reversal of 40151171 is 17115104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40151171 - 2¹⁰ = 40150147 is a prime.

It is a super-2 number, since 2×40151171² = 3224233065342482, which contains 22 as substring.

Together with 40151173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40151173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20075585 + 20075586.

It is an arithmetic number, because the mean of its divisors is an integer number (20075586).

Almost surely, 2^40151171 is an apocalyptic number.

40151171 is a deficient number, since it is larger than the sum of its proper divisors (1).

40151171 is an equidigital number, since it uses as much as digits as its factorization.

40151171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 40151171 is about 6336.4951668884. The cubic root of 40151171 is about 342.4254790184.

Adding to 40151171 its reverse (17115104), we get a palindrome (57266275).

The spelling of 40151171 in words is "forty million, one hundred fifty-one thousand, one hundred seventy-one".