140045443 has 2 divisors, whose sum is σ = 140045444. Its totient is φ = 140045442.

The previous prime is 140045431. The next prime is 140045467. The reversal of 140045443 is 344540041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140045443 is a prime.

It is a super-2 number, since 2×140045443² = 39225452210132498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140045743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70022721 + 70022722.

It is an arithmetic number, because the mean of its divisors is an integer number (70022722).

Almost surely, 2^140045443 is an apocalyptic number.

140045443 is a deficient number, since it is larger than the sum of its proper divisors (1).

140045443 is an equidigital number, since it uses as much as digits as its factorization.

140045443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 140045443 is about 11834.0797276341. The cubic root of 140045443 is about 519.3055856574.

Adding to 140045443 its reverse (344540041), we get a palindrome (484585484).

The spelling of 140045443 in words is "one hundred forty million, forty-five thousand, four hundred forty-three".