140231121 has 8 divisors (see below), whose sum is σ = 187915200. Its totient is φ = 93017232.

The previous prime is 140231107. The next prime is 140231173. The reversal of 140231121 is 121132041.

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

It is not a de Polignac number, because 140231121 - 2¹⁵ = 140198353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140231121.

It is not an unprimeable number, because it can be changed into a prime (140231921) 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, 116850 + ... + 118043.

It is an arithmetic number, because the mean of its divisors is an integer number (23489400).

Almost surely, 2^140231121 is an apocalyptic number.

It is an amenable number.

140231121 is a deficient number, since it is larger than the sum of its proper divisors (47684079).

140231121 is a wasteful number, since it uses less digits than its factorization.

140231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235095.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 140231121 is about 11841.9221834971. The cubic root of 140231121 is about 519.5349898605.

Adding to 140231121 its reverse (121132041), we get a palindrome (261363162).

It can be divided in two parts, 1402 and 31121, that added together give a palindrome (32523).

The spelling of 140231121 in words is "one hundred forty million, two hundred thirty-one thousand, one hundred twenty-one".