140443091 has 2 divisors, whose sum is σ = 140443092. Its totient is φ = 140443090.

The previous prime is 140443063. The next prime is 140443123. The reversal of 140443091 is 190344041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140443091 - 2¹⁸ = 140180947 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140443091.

It is not a weakly prime, because it can be changed into another prime (140443291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70221545 + 70221546.

It is an arithmetic number, because the mean of its divisors is an integer number (70221546).

Almost surely, 2^140443091 is an apocalyptic number.

140443091 is a deficient number, since it is larger than the sum of its proper divisors (1).

140443091 is an equidigital number, since it uses as much as digits as its factorization.

140443091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 140443091 is about 11850.8687867177. The cubic root of 140443091 is about 519.7966302860.

The spelling of 140443091 in words is "one hundred forty million, four hundred forty-three thousand, ninety-one".