140001231 has 8 divisors (see below), whose sum is σ = 186975280. Its totient is φ = 93180672.

The previous prime is 140001223. The next prime is 140001233. The reversal of 140001231 is 132100041.

It is a happy number.

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

It is not a de Polignac number, because 140001231 - 2³ = 140001223 is a prime.

It is a super-2 number, since 2×140001231² = 39200689363030722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140001233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36226 + ... + 39903.

It is an arithmetic number, because the mean of its divisors is an integer number (23371910).

Almost surely, 2^140001231 is an apocalyptic number.

140001231 is a deficient number, since it is larger than the sum of its proper divisors (46974049).

140001231 is an equidigital number, since it uses as much as digits as its factorization.

140001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76745.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 140001231 is about 11832.2115853293. The cubic root of 140001231 is about 519.2509320759.

Adding to 140001231 its reverse (132100041), we get a palindrome (272101272).

The spelling of 140001231 in words is "one hundred forty million, one thousand, two hundred thirty-one".