40515149 has 2 divisors, whose sum is σ = 40515150. Its totient is φ = 40515148.

The previous prime is 40515119. The next prime is 40515157. The reversal of 40515149 is 94151504.

40515149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32775625 + 7739524 = 5725^2 + 2782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40515149 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 (40515119) 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, 20257574 + 20257575.

It is an arithmetic number, because the mean of its divisors is an integer number (20257575).

Almost surely, 2^40515149 is an apocalyptic number.

It is an amenable number.

40515149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40515149 is an equidigital number, since it uses as much as digits as its factorization.

40515149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 40515149 is about 6365.1511372473. The cubic root of 40515149 is about 343.4570853940.

The spelling of 40515149 in words is "forty million, five hundred fifteen thousand, one hundred forty-nine".