140729253 has 8 divisors (see below), whose sum is σ = 214444608. Its totient is φ = 80416704.

The previous prime is 140729221. The next prime is 140729269. The reversal of 140729253 is 352927041.

140729253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140729253 - 2⁵ = 140729221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140729273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3350676 + ... + 3350717.

It is an arithmetic number, because the mean of its divisors is an integer number (26805576).

Almost surely, 2^140729253 is an apocalyptic number.

It is an amenable number.

140729253 is a deficient number, since it is larger than the sum of its proper divisors (73715355).

140729253 is an equidigital number, since it uses as much as digits as its factorization.

140729253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701403.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 140729253 is about 11862.9361036802. The cubic root of 140729253 is about 520.1494306738.

The spelling of 140729253 in words is "one hundred forty million, seven hundred twenty-nine thousand, two hundred fifty-three".