40144759 has 2 divisors, whose sum is σ = 40144760. Its totient is φ = 40144758.

The previous prime is 40144751. The next prime is 40144763. The reversal of 40144759 is 95744104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40144759 - 2³ = 40144751 is a prime.

It is a super-2 number, since 2×40144759² = 3223203350336162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40144751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20072379 + 20072380.

It is an arithmetic number, because the mean of its divisors is an integer number (20072380).

Almost surely, 2^40144759 is an apocalyptic number.

40144759 is a deficient number, since it is larger than the sum of its proper divisors (1).

40144759 is an equidigital number, since it uses as much as digits as its factorization.

40144759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 40144759 is about 6335.9891887534. The cubic root of 40144759 is about 342.4072500021.

The spelling of 40144759 in words is "forty million, one hundred forty-four thousand, seven hundred fifty-nine".