140233349 has 4 divisors (see below), whose sum is σ = 141621900. Its totient is φ = 138844800.

The previous prime is 140233297. The next prime is 140233361. The reversal of 140233349 is 943332041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943332041 = 787 ⋅1198643.

It can be written as a sum of positive squares in 2 ways, for example, as 129800449 + 10432900 = 11393^2 + 3230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140233349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145233349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694124 + ... + 694325.

It is an arithmetic number, because the mean of its divisors is an integer number (35405475).

Almost surely, 2^140233349 is an apocalyptic number.

It is an amenable number.

140233349 is a deficient number, since it is larger than the sum of its proper divisors (1388551).

140233349 is a wasteful number, since it uses less digits than its factorization.

140233349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388550.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 140233349 is about 11842.0162556889. The cubic root of 140233349 is about 519.5377413131.

The spelling of 140233349 in words is "one hundred forty million, two hundred thirty-three thousand, three hundred forty-nine".