40111129 has 2 divisors, whose sum is σ = 40111130. Its totient is φ = 40111128.

The previous prime is 40111087. The next prime is 40111133. The reversal of 40111129 is 92111104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21206025 + 18905104 = 4605^2 + 4348^2 .

It is a cyclic number.

It is not a de Polignac number, because 40111129 - 2⁹ = 40110617 is a prime.

It is not a weakly prime, because it can be changed into another prime (40111139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20055564 + 20055565.

It is an arithmetic number, because the mean of its divisors is an integer number (20055565).

Almost surely, 2^40111129 is an apocalyptic number.

It is an amenable number.

40111129 is a deficient number, since it is larger than the sum of its proper divisors (1).

40111129 is an equidigital number, since it uses as much as digits as its factorization.

40111129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 40111129 is about 6333.3347456139. The cubic root of 40111129 is about 342.3116096820.

The spelling of 40111129 in words is "forty million, one hundred eleven thousand, one hundred twenty-nine".