140203227 has 4 divisors (see below), whose sum is σ = 186937640. Its totient is φ = 93468816.

The previous prime is 140203183. The next prime is 140203229. The reversal of 140203227 is 722302041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722302041 = 3 ⋅240767347.

It is not a de Polignac number, because 140203227 - 2⁷ = 140203099 is a prime.

It is a super-2 number, since 2×140203227² = 39313889722427058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140203229) 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, 23367202 + ... + 23367207.

It is an arithmetic number, because the mean of its divisors is an integer number (46734410).

Almost surely, 2^140203227 is an apocalyptic number.

140203227 is a deficient number, since it is larger than the sum of its proper divisors (46734413).

140203227 is an equidigital number, since it uses as much as digits as its factorization.

140203227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46734412.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 140203227 is about 11840.7443600476. The cubic root of 140203227 is about 519.5005398994.

Adding to 140203227 its reverse (722302041), we get a palindrome (862505268).

The spelling of 140203227 in words is "one hundred forty million, two hundred three thousand, two hundred twenty-seven".