40258157 has 2 divisors, whose sum is σ = 40258158. Its totient is φ = 40258156.

The previous prime is 40258151. The next prime is 40258219. The reversal of 40258157 is 75185204.

40258157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35652841 + 4605316 = 5971^2 + 2146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40258157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40258151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20129078 + 20129079.

It is an arithmetic number, because the mean of its divisors is an integer number (20129079).

Almost surely, 2^40258157 is an apocalyptic number.

It is an amenable number.

40258157 is a deficient number, since it is larger than the sum of its proper divisors (1).

40258157 is an equidigital number, since it uses as much as digits as its factorization.

40258157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 40258157 is about 6344.9315993161. The cubic root of 40258157 is about 342.7293492896.

The spelling of 40258157 in words is "forty million, two hundred fifty-eight thousand, one hundred fifty-seven".