140082989 has 2 divisors, whose sum is σ = 140082990. Its totient is φ = 140082988.

The previous prime is 140082979. The next prime is 140083033. The reversal of 140082989 is 989280041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71690089 + 68392900 = 8467^2 + 8270^2 .

It is a cyclic number.

It is not a de Polignac number, because 140082989 - 2⁴ = 140082973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140082979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70041494 + 70041495.

It is an arithmetic number, because the mean of its divisors is an integer number (70041495).

Almost surely, 2^140082989 is an apocalyptic number.

It is an amenable number.

140082989 is a deficient number, since it is larger than the sum of its proper divisors (1).

140082989 is an equidigital number, since it uses as much as digits as its factorization.

140082989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 140082989 is about 11835.6659719679. The cubic root of 140082989 is about 519.3519898933.

The spelling of 140082989 in words is "one hundred forty million, eighty-two thousand, nine hundred eighty-nine".