140511445 has 4 divisors (see below), whose sum is σ = 168613740. Its totient is φ = 112409152.

The previous prime is 140511433. The next prime is 140511457. The reversal of 140511445 is 544115041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544115041 = 9533 ⋅57077.

It is an interprime number because it is at equal distance from previous prime (140511433) and next prime (140511457).

It can be written as a sum of positive squares in 2 ways, for example, as 38056561 + 102454884 = 6169^2 + 10122^2 .

It is a cyclic number.

It is not a de Polignac number, because 140511445 - 2⁷ = 140511317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14051140 + ... + 14051149.

It is an arithmetic number, because the mean of its divisors is an integer number (42153435).

Almost surely, 2^140511445 is an apocalyptic number.

It is an amenable number.

140511445 is a deficient number, since it is larger than the sum of its proper divisors (28102295).

140511445 is an equidigital number, since it uses as much as digits as its factorization.

140511445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28102294.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 140511445 is about 11853.7523594852. The cubic root of 140511445 is about 519.8809453775.

Adding to 140511445 its reverse (544115041), we get a palindrome (684626486).

The spelling of 140511445 in words is "one hundred forty million, five hundred eleven thousand, four hundred forty-five".