140038223 has 4 divisors (see below), whose sum is σ = 150810408. Its totient is φ = 129266040.

The previous prime is 140038193. The next prime is 140038259. The reversal of 140038223 is 322830041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322830041 = 1447 ⋅223103.

It is a cyclic number.

It is not a de Polignac number, because 140038223 - 2⁸ = 140037967 is a prime.

It is a super-2 number, since 2×140038223² = 39221407801995458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140038273) 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, 5386073 + ... + 5386098.

It is an arithmetic number, because the mean of its divisors is an integer number (37702602).

Almost surely, 2^140038223 is an apocalyptic number.

140038223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140038223 is a deficient number, since it is larger than the sum of its proper divisors (10772185).

140038223 is a wasteful number, since it uses less digits than its factorization.

140038223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10772184.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140038223 is about 11833.7746725210. The cubic root of 140038223 is about 519.2966612904.

Adding to 140038223 its reverse (322830041), we get a palindrome (462868264).

The spelling of 140038223 in words is "one hundred forty million, thirty-eight thousand, two hundred twenty-three".