140445413 has 4 divisors (see below), whose sum is σ = 141470700. Its totient is φ = 139420128.

The previous prime is 140445391. The next prime is 140445433. The reversal of 140445413 is 314544041.

It is a happy number.

140445413 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.

It can be written as a sum of positive squares in 2 ways, for example, as 66863329 + 73582084 = 8177^2 + 8578^2 .

It is a cyclic number.

It is not a de Polignac number, because 140445413 - 2⁸ = 140445157 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 (140445433) 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, 512438 + ... + 512711.

It is an arithmetic number, because the mean of its divisors is an integer number (35367675).

Almost surely, 2^140445413 is an apocalyptic number.

It is an amenable number.

140445413 is a deficient number, since it is larger than the sum of its proper divisors (1025287).

140445413 is a wasteful number, since it uses less digits than its factorization.

140445413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025286.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 140445413 is about 11850.9667538138. The cubic root of 140445413 is about 519.7994949365.

Adding to 140445413 its reverse (314544041), we get a palindrome (454989454).

The spelling of 140445413 in words is "one hundred forty million, four hundred forty-five thousand, four hundred thirteen".