140336123 has 4 divisors (see below), whose sum is σ = 142430760. Its totient is φ = 138241488.

The previous prime is 140336117. The next prime is 140336129. The reversal of 140336123 is 321633041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321633041 = 4507 ⋅71363.

It is an interprime number because it is at equal distance from previous prime (140336117) and next prime (140336129).

It is a cyclic number.

It is not a de Polignac number, because 140336123 - 2⁴ = 140336107 is a prime.

It is a super-2 number, since 2×140336123² = 39388454837342258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140336129) 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, 1047218 + ... + 1047351.

It is an arithmetic number, because the mean of its divisors is an integer number (35607690).

Almost surely, 2^140336123 is an apocalyptic number.

140336123 is a deficient number, since it is larger than the sum of its proper divisors (2094637).

140336123 is an equidigital number, since it uses as much as digits as its factorization.

140336123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094636.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 140336123 is about 11846.3548402030. The cubic root of 140336123 is about 519.6646296591.

Adding to 140336123 its reverse (321633041), we get a palindrome (461969164).

The spelling of 140336123 in words is "one hundred forty million, three hundred thirty-six thousand, one hundred twenty-three".