140459549 has 2 divisors, whose sum is σ = 140459550. Its totient is φ = 140459548.

The previous prime is 140459503. The next prime is 140459581. The reversal of 140459549 is 945954041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92987449 + 47472100 = 9643^2 + 6890^2 .

It is a cyclic number.

It is not a de Polignac number, because 140459549 - 2¹² = 140455453 is a prime.

It is a super-3 number, since 3×140459549³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_7936619 and since 140459549 and 7936619 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140459749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70229774 + 70229775.

It is an arithmetic number, because the mean of its divisors is an integer number (70229775).

Almost surely, 2^140459549 is an apocalyptic number.

It is an amenable number.

140459549 is a deficient number, since it is larger than the sum of its proper divisors (1).

140459549 is an equidigital number, since it uses as much as digits as its factorization.

140459549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 140459549 is about 11851.5631458470. The cubic root of 140459549 is about 519.8169338332.

The spelling of 140459549 in words is "one hundred forty million, four hundred fifty-nine thousand, five hundred forty-nine".