140986009 has 2 divisors, whose sum is σ = 140986010. Its totient is φ = 140986008.

The previous prime is 140985997. The next prime is 140986019. The reversal of 140986009 is 900689041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116035984 + 24950025 = 10772^2 + 4995^2 .

It is a cyclic number.

It is not a de Polignac number, because 140986009 - 2⁷ = 140985881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140986019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70493004 + 70493005.

It is an arithmetic number, because the mean of its divisors is an integer number (70493005).

Almost surely, 2^140986009 is an apocalyptic number.

It is an amenable number.

140986009 is a deficient number, since it is larger than the sum of its proper divisors (1).

140986009 is an equidigital number, since it uses as much as digits as its factorization.

140986009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 140986009 is about 11873.7529450465. The cubic root of 140986009 is about 520.4655704634.

The spelling of 140986009 in words is "one hundred forty million, nine hundred eighty-six thousand, nine".