40144501 has 2 divisors, whose sum is σ = 40144502. Its totient is φ = 40144500.

The previous prime is 40144487. The next prime is 40144529. The reversal of 40144501 is 10544104.

40144501 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., 34503876 + 5640625 = 5874^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 40144501 - 2⁹ = 40143989 is a prime.

It is a super-2 number, since 2×40144501² = 3223161921078002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40144541) 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, 20072250 + 20072251.

It is an arithmetic number, because the mean of its divisors is an integer number (20072251).

Almost surely, 2^40144501 is an apocalyptic number.

It is an amenable number.

40144501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40144501 is an equidigital number, since it uses as much as digits as its factorization.

40144501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40144501 is about 6335.9688288375. The cubic root of 40144501 is about 342.4065164795.

Adding to 40144501 its reverse (10544104), we get a palindrome (50688605).

It can be divided in two parts, 4014 and 4501, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 40144501 in words is "forty million, one hundred forty-four thousand, five hundred one".