140489189 has 2 divisors, whose sum is σ = 140489190. Its totient is φ = 140489188.

The previous prime is 140489177. The next prime is 140489201. The reversal of 140489189 is 981984041.

It is a balanced prime because it is at equal distance from previous prime (140489177) and next prime (140489201).

It can be written as a sum of positive squares in only one way, i.e., 80550625 + 59938564 = 8975^2 + 7742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140489189 is a prime.

It is a super-3 number, since 3×140489189³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140489149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70244594 + 70244595.

It is an arithmetic number, because the mean of its divisors is an integer number (70244595).

Almost surely, 2^140489189 is an apocalyptic number.

It is an amenable number.

140489189 is a deficient number, since it is larger than the sum of its proper divisors (1).

140489189 is an equidigital number, since it uses as much as digits as its factorization.

140489189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 140489189 is about 11852.8135478459. The cubic root of 140489189 is about 519.8534954635.

The spelling of 140489189 in words is "one hundred forty million, four hundred eighty-nine thousand, one hundred eighty-nine".