140391353 has 4 divisors (see below), whose sum is σ = 142368768. Its totient is φ = 138413940.

The previous prime is 140391319. The next prime is 140391367. The reversal of 140391353 is 353193041.

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, and also an emirpimes, since its reverse is a distinct semiprime: 353193041 = 293 ⋅1205437.

It is a cyclic number.

It is not a de Polignac number, because 140391353 - 2⁶ = 140391289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140391553) 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, 988601 + ... + 988742.

It is an arithmetic number, because the mean of its divisors is an integer number (35592192).

Almost surely, 2^140391353 is an apocalyptic number.

It is an amenable number.

140391353 is a deficient number, since it is larger than the sum of its proper divisors (1977415).

140391353 is an equidigital number, since it uses as much as digits as its factorization.

140391353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977414.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 140391353 is about 11848.6857077062. The cubic root of 140391353 is about 519.7327929434.

The spelling of 140391353 in words is "one hundred forty million, three hundred ninety-one thousand, three hundred fifty-three".