140753209 has 2 divisors, whose sum is σ = 140753210. Its totient is φ = 140753208.

The previous prime is 140753201. The next prime is 140753243. The reversal of 140753209 is 902357041.

140753209 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., 122877225 + 17875984 = 11085^2 + 4228^2 .

It is a cyclic number.

It is not a de Polignac number, because 140753209 - 2³ = 140753201 is a prime.

It is a super-2 number, since 2×140753209² = 39622931687595362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140753201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70376604 + 70376605.

It is an arithmetic number, because the mean of its divisors is an integer number (70376605).

Almost surely, 2^140753209 is an apocalyptic number.

It is an amenable number.

140753209 is a deficient number, since it is larger than the sum of its proper divisors (1).

140753209 is an equidigital number, since it uses as much as digits as its factorization.

140753209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 140753209 is about 11863.9457601592. The cubic root of 140753209 is about 520.1789435920.

The spelling of 140753209 in words is "one hundred forty million, seven hundred fifty-three thousand, two hundred nine".