140440501 has 2 divisors, whose sum is σ = 140440502. Its totient is φ = 140440500.

The previous prime is 140440471. The next prime is 140440529. The reversal of 140440501 is 105044041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106626276 + 33814225 = 10326^2 + 5815^2 .

It is a cyclic number.

It is not a de Polignac number, because 140440501 - 2⁷ = 140440373 is a prime.

It is a super-2 number, since 2×140440501² = 39447068642262002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140440541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70220250 + 70220251.

It is an arithmetic number, because the mean of its divisors is an integer number (70220251).

Almost surely, 2^140440501 is an apocalyptic number.

It is an amenable number.

140440501 is a deficient number, since it is larger than the sum of its proper divisors (1).

140440501 is an equidigital number, since it uses as much as digits as its factorization.

140440501 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 140440501 is about 11850.7595115250. The cubic root of 140440501 is about 519.7934349667.

Adding to 140440501 its reverse (105044041), we get a palindrome (245484542).

It can be divided in two parts, 1404 and 40501, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 140440501 in words is "one hundred forty million, four hundred forty thousand, five hundred one".