140221253 has 16 divisors (see below), whose sum is σ = 151118784. Its totient is φ = 129642240.

The previous prime is 140221223. The next prime is 140221259. The reversal of 140221253 is 352122041.

140221253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140221253 - 2²⁴ = 123444037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140221259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285338 + ... + 285828.

It is an arithmetic number, because the mean of its divisors is an integer number (9444924).

Almost surely, 2^140221253 is an apocalyptic number.

It is an amenable number.

140221253 is a deficient number, since it is larger than the sum of its proper divisors (10897531).

140221253 is a wasteful number, since it uses less digits than its factorization.

140221253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140221253 is about 11841.5055208364. The cubic root of 140221253 is about 519.5228030946.

Adding to 140221253 its reverse (352122041), we get a palindrome (492343294).

The spelling of 140221253 in words is "one hundred forty million, two hundred twenty-one thousand, two hundred fifty-three".