140105741 has 4 divisors (see below), whose sum is σ = 140466300. Its totient is φ = 139745184.

The previous prime is 140105723. The next prime is 140105759. The reversal of 140105741 is 147501041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 147501041 = 593 ⋅248737.

It is an interprime number because it is at equal distance from previous prime (140105723) and next prime (140105759).

It can be written as a sum of positive squares in 2 ways, for example, as 101404900 + 38700841 = 10070^2 + 6221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140105741 is a prime.

It is a super-2 number, since 2×140105741² = 39259237322318162, 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 (140105711) 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, 179696 + ... + 180473.

It is an arithmetic number, because the mean of its divisors is an integer number (35116575).

Almost surely, 2^140105741 is an apocalyptic number.

It is an amenable number.

140105741 is a deficient number, since it is larger than the sum of its proper divisors (360559).

140105741 is an equidigital number, since it uses as much as digits as its factorization.

140105741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360558.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 140105741 is about 11836.6270955877. The cubic root of 140105741 is about 519.3801057430.

Adding to 140105741 its reverse (147501041), we get a palindrome (287606782).

The spelling of 140105741 in words is "one hundred forty million, one hundred five thousand, seven hundred forty-one".