40719149 has 2 divisors, whose sum is σ = 40719150. Its totient is φ = 40719148.

The previous prime is 40719101. The next prime is 40719163. The reversal of 40719149 is 94191704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39778249 + 940900 = 6307^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 40719149 - 2¹² = 40715053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40719169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20359574 + 20359575.

It is an arithmetic number, because the mean of its divisors is an integer number (20359575).

Almost surely, 2^40719149 is an apocalyptic number.

It is an amenable number.

40719149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40719149 is an equidigital number, since it uses as much as digits as its factorization.

40719149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 40719149 is about 6381.1557730555. The cubic root of 40719149 is about 344.0325736461.

The spelling of 40719149 in words is "forty million, seven hundred nineteen thousand, one hundred forty-nine".