140231013 has 8 divisors (see below), whose sum is σ = 201357408. Its totient is φ = 86295984.

The previous prime is 140230969. The next prime is 140231053. The reversal of 140231013 is 310132041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140231013 - 2⁸ = 140230757 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140230983 and 140231001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140231053) 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 7 ways as a sum of consecutive naturals, for example, 1797795 + ... + 1797872.

It is an arithmetic number, because the mean of its divisors is an integer number (25169676).

Almost surely, 2^140231013 is an apocalyptic number.

140231013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

140231013 is a deficient number, since it is larger than the sum of its proper divisors (61126395).

140231013 is a wasteful number, since it uses less digits than its factorization.

140231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595683.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 140231013 is about 11841.9176234257. The cubic root of 140231013 is about 519.5348564859.

Adding to 140231013 its reverse (310132041), we get a palindrome (450363054).

The spelling of 140231013 in words is "one hundred forty million, two hundred thirty-one thousand, thirteen".