140758889 has 2 divisors, whose sum is σ = 140758890. Its totient is φ = 140758888.

The previous prime is 140758853. The next prime is 140758901. The reversal of 140758889 is 988857041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132250000 + 8508889 = 11500^2 + 2917^2 .

It is an emirp because it is prime and its reverse (988857041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140758889 - 2⁸ = 140758633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140751889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70379444 + 70379445.

It is an arithmetic number, because the mean of its divisors is an integer number (70379445).

Almost surely, 2^140758889 is an apocalyptic number.

It is an amenable number.

140758889 is a deficient number, since it is larger than the sum of its proper divisors (1).

140758889 is an equidigital number, since it uses as much as digits as its factorization.

140758889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 50.

The square root of 140758889 is about 11864.1851384745. The cubic root of 140758889 is about 520.1859406537.

The spelling of 140758889 in words is "one hundred forty million, seven hundred fifty-eight thousand, eight hundred eighty-nine".