140144253 has 4 divisors (see below), whose sum is σ = 186859008. Its totient is φ = 93429500.

The previous prime is 140144239. The next prime is 140144281. The reversal of 140144253 is 352441041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140144253 - 2⁴ = 140144237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140144203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23357373 + ... + 23357378.

It is an arithmetic number, because the mean of its divisors is an integer number (46714752).

Almost surely, 2^140144253 is an apocalyptic number.

It is an amenable number.

140144253 is a deficient number, since it is larger than the sum of its proper divisors (46714755).

140144253 is an equidigital number, since it uses as much as digits as its factorization.

140144253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46714754.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 140144253 is about 11838.2537985972. The cubic root of 140144253 is about 519.4276901223.

Adding to 140144253 its reverse (352441041), we get a palindrome (492585294).

It can be divided in two parts, 1401 and 44253, that added together give a palindrome (45654).

The spelling of 140144253 in words is "one hundred forty million, one hundred forty-four thousand, two hundred fifty-three".