140212043 has 2 divisors, whose sum is σ = 140212044. Its totient is φ = 140212042.

The previous prime is 140212021. The next prime is 140212157. The reversal of 140212043 is 340212041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140212043 - 2¹⁶ = 140146507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (140215043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70106021 + 70106022.

It is an arithmetic number, because the mean of its divisors is an integer number (70106022).

Almost surely, 2^140212043 is an apocalyptic number.

140212043 is a deficient number, since it is larger than the sum of its proper divisors (1).

140212043 is an equidigital number, since it uses as much as digits as its factorization.

140212043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140212043 is about 11841.1166280888. The cubic root of 140212043 is about 519.5114284285.

Adding to 140212043 its reverse (340212041), we get a palindrome (480424084).

The spelling of 140212043 in words is "one hundred forty million, two hundred twelve thousand, forty-three".