140234013 has 12 divisors (see below), whose sum is σ = 211367520. Its totient is φ = 89424456.

The previous prime is 140234011. The next prime is 140234023. The reversal of 140234013 is 310432041.

It is not a de Polignac number, because 140234013 - 2¹ = 140234011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140234011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338523 + ... + 338936.

It is an arithmetic number, because the mean of its divisors is an integer number (17613960).

Almost surely, 2^140234013 is an apocalyptic number.

It is an amenable number.

140234013 is a deficient number, since it is larger than the sum of its proper divisors (71133507).

140234013 is a wasteful number, since it uses less digits than its factorization.

140234013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677488 (or 677485 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140234013 is about 11842.0442914220. The cubic root of 140234013 is about 519.5385613094.

Adding to 140234013 its reverse (310432041), we get a palindrome (450666054).

The spelling of 140234013 in words is "one hundred forty million, two hundred thirty-four thousand, thirteen".