40653149 has 2 divisors, whose sum is σ = 40653150. Its totient is φ = 40653148.

The previous prime is 40653139. The next prime is 40653161. The reversal of 40653149 is 94135604.

40653149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 20313049 = 4510^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 40653149 - 2⁸ = 40652893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_2470928 and since 40653149 and 2470928 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40653139) 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, 20326574 + 20326575.

It is an arithmetic number, because the mean of its divisors is an integer number (20326575).

Almost surely, 2^40653149 is an apocalyptic number.

It is an amenable number.

40653149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40653149 is an equidigital number, since it uses as much as digits as its factorization.

40653149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 40653149 is about 6375.9821988459. The cubic root of 40653149 is about 343.8465970291.

The spelling of 40653149 in words is "forty million, six hundred fifty-three thousand, one hundred forty-nine".