140205253 has 2 divisors, whose sum is σ = 140205254. Its totient is φ = 140205252.

The previous prime is 140205223. The next prime is 140205257. The reversal of 140205253 is 352502041.

140205253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109035364 + 31169889 = 10442^2 + 5583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140205253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140205257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70102626 + 70102627.

It is an arithmetic number, because the mean of its divisors is an integer number (70102627).

Almost surely, 2^140205253 is an apocalyptic number.

It is an amenable number.

140205253 is a deficient number, since it is larger than the sum of its proper divisors (1).

140205253 is an equidigital number, since it uses as much as digits as its factorization.

140205253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 140205253 is about 11840.8299117925. The cubic root of 140205253 is about 519.5030422265.

Adding to 140205253 its reverse (352502041), we get a palindrome (492707294).

The spelling of 140205253 in words is "one hundred forty million, two hundred five thousand, two hundred fifty-three".