140783389 has 2 divisors, whose sum is σ = 140783390. Its totient is φ = 140783388.

The previous prime is 140783359. The next prime is 140783393. The reversal of 140783389 is 983387041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128936025 + 11847364 = 11355^2 + 3442^2 .

It is a cyclic number.

It is not a de Polignac number, because 140783389 - 2¹³ = 140775197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140783339) 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, 70391694 + 70391695.

It is an arithmetic number, because the mean of its divisors is an integer number (70391695).

Almost surely, 2^140783389 is an apocalyptic number.

It is an amenable number.

140783389 is a deficient number, since it is larger than the sum of its proper divisors (1).

140783389 is an equidigital number, since it uses as much as digits as its factorization.

140783389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 140783389 is about 11865.2176128380. The cubic root of 140783389 is about 520.2161194847.

The spelling of 140783389 in words is "one hundred forty million, seven hundred eighty-three thousand, three hundred eighty-nine".