40584149 has 2 divisors, whose sum is σ = 40584150. Its totient is φ = 40584148.

The previous prime is 40584143. The next prime is 40584157. The reversal of 40584149 is 94148504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31281649 + 9302500 = 5593^2 + 3050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40584149 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 (40584143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20292074 + 20292075.

It is an arithmetic number, because the mean of its divisors is an integer number (20292075).

Almost surely, 2^40584149 is an apocalyptic number.

It is an amenable number.

40584149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40584149 is an equidigital number, since it uses as much as digits as its factorization.

40584149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 40584149 is about 6370.5689698802. The cubic root of 40584149 is about 343.6519515843.

The spelling of 40584149 in words is "forty million, five hundred eighty-four thousand, one hundred forty-nine".