140411231 has 4 divisors (see below), whose sum is σ = 143398752. Its totient is φ = 137423712.

The previous prime is 140411221. The next prime is 140411237. The reversal of 140411231 is 132114041.

It is a happy number.

140411231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132114041 = 8501 ⋅15541.

It is a cyclic number.

It is not a de Polignac number, because 140411231 - 2¹⁴ = 140394847 is a prime.

It is a super-2 number, since 2×140411231² = 39430627581870722, 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 (140411237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493690 + ... + 1493783.

It is an arithmetic number, because the mean of its divisors is an integer number (35849688).

Almost surely, 2^140411231 is an apocalyptic number.

140411231 is a deficient number, since it is larger than the sum of its proper divisors (2987521).

140411231 is an equidigital number, since it uses as much as digits as its factorization.

140411231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987520.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 140411231 is about 11849.5245052280. The cubic root of 140411231 is about 519.7573214268.

Adding to 140411231 its reverse (132114041), we get a palindrome (272525272).

The spelling of 140411231 in words is "one hundred forty million, four hundred eleven thousand, two hundred thirty-one".