140241231 has 12 divisors (see below), whose sum is σ = 218153208. Its totient is φ = 86302224.

The previous prime is 140241221. The next prime is 140241287. The reversal of 140241231 is 132142041.

It is not a de Polignac number, because 140241231 - 2¹³ = 140233039 is a prime.

It is a super-2 number, since 2×140241231² = 39335205744790722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140241221) 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, 599205 + ... + 599438.

It is an arithmetic number, because the mean of its divisors is an integer number (18179434).

Almost surely, 2^140241231 is an apocalyptic number.

140241231 is a deficient number, since it is larger than the sum of its proper divisors (77911977).

140241231 is a wasteful number, since it uses less digits than its factorization.

140241231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198662 (or 1198659 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140241231 is about 11842.3490490696. The cubic root of 140241231 is about 519.5474748983.

Adding to 140241231 its reverse (132142041), we get a palindrome (272383272).

The spelling of 140241231 in words is "one hundred forty million, two hundred forty-one thousand, two hundred thirty-one".