400111147 has 2 divisors, whose sum is σ = 400111148. Its totient is φ = 400111146.

The previous prime is 400111121. The next prime is 400111163. The reversal of 400111147 is 741111004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400111147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400111447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200055573 + 200055574.

It is an arithmetic number, because the mean of its divisors is an integer number (200055574).

Almost surely, 2^400111147 is an apocalyptic number.

400111147 is a deficient number, since it is larger than the sum of its proper divisors (1).

400111147 is an equidigital number, since it uses as much as digits as its factorization.

400111147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 400111147 is about 20002.7784820009. The cubic root of 400111147 is about 736.8745382495.

The spelling of 400111147 in words is "four hundred million, one hundred eleven thousand, one hundred forty-seven".