140405341 has 4 divisors (see below), whose sum is σ = 140449500. Its totient is φ = 140361184.

The previous prime is 140405333. The next prime is 140405351. The reversal of 140405341 is 143504041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143504041 = 823 ⋅174367.

It can be written as a sum of positive squares in 2 ways, for example, as 14853316 + 125552025 = 3854^2 + 11205^2 .

It is a cyclic number.

It is not a de Polignac number, because 140405341 - 2³ = 140405333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140405311) 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, 16906 + ... + 23803.

It is an arithmetic number, because the mean of its divisors is an integer number (35112375).

Almost surely, 2^140405341 is an apocalyptic number.

It is an amenable number.

140405341 is a deficient number, since it is larger than the sum of its proper divisors (44159).

140405341 is an equidigital number, since it uses as much as digits as its factorization.

140405341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44158.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 140405341 is about 11849.2759694422. The cubic root of 140405341 is about 519.7500536951.

Adding to 140405341 its reverse (143504041), we get a palindrome (283909382).

The spelling of 140405341 in words is "one hundred forty million, four hundred five thousand, three hundred forty-one".