40104149 has 2 divisors, whose sum is σ = 40104150. Its totient is φ = 40104148.

The previous prime is 40104121. The next prime is 40104161. The reversal of 40104149 is 94140104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35343025 + 4761124 = 5945^2 + 2182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40104149 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 (40100149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052074 + 20052075.

It is an arithmetic number, because the mean of its divisors is an integer number (20052075).

Almost surely, 2^40104149 is an apocalyptic number.

It is an amenable number.

40104149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40104149 is an equidigital number, since it uses as much as digits as its factorization.

40104149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 40104149 is about 6332.7836691300. The cubic root of 40104149 is about 342.2917525692.

The spelling of 40104149 in words is "forty million, one hundred four thousand, one hundred forty-nine".