40156199 has 2 divisors, whose sum is σ = 40156200. Its totient is φ = 40156198.

The previous prime is 40156163. The next prime is 40156201. The reversal of 40156199 is 99165104.

40156199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40156199 - 2²⁰ = 39107623 is a prime.

It is a super-2 number, since 2×40156199² = 3225040636255202, which contains 22 as substring.

Together with 40156201, 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 (40156099) 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, 20078099 + 20078100.

It is an arithmetic number, because the mean of its divisors is an integer number (20078100).

Almost surely, 2^40156199 is an apocalyptic number.

40156199 is a deficient number, since it is larger than the sum of its proper divisors (1).

40156199 is an equidigital number, since it uses as much as digits as its factorization.

40156199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 40156199 is about 6336.8919037648. The cubic root of 40156199 is about 342.4397720299.

The spelling of 40156199 in words is "forty million, one hundred fifty-six thousand, one hundred ninety-nine".