40151 has 2 divisors, whose sum is σ = 40152. Its totient is φ = 40150.

The previous prime is 40129. The next prime is 40153. The reversal of 40151 is 15104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40151 - 2⁶ = 40087 is a prime.

It is a super-2 number, since 2×40151² = 3224205602, which contains 22 as substring.

Together with 40153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20075 + 20076.

It is an arithmetic number, because the mean of its divisors is an integer number (20076).

2⁴⁰¹⁵¹ is an apocalyptic number.

40151 is a deficient number, since it is larger than the sum of its proper divisors (1).

40151 is an equidigital number, since it uses as much as digits as its factorization.

40151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 40151 is about 200.3771444052. The cubic root of 40151 is about 34.2424992899.

Adding to 40151 its reverse (15104), we get a palindrome (55255).

It can be divided in two parts, 40 and 151, that added together give a palindrome (191).

The spelling of 40151 in words is "forty thousand, one hundred fifty-one".