140606249 has 8 divisors (see below), whose sum is σ = 162894720. Its totient is φ = 118868256.

The previous prime is 140606243. The next prime is 140606273. The reversal of 140606249 is 942606041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140606249 - 2¹⁶ = 140540713 is a prime.

It is a super-3 number, since 3×140606249³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140606243) 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 in 7 ways as a sum of consecutive naturals, for example, 137069 + ... + 138090.

It is an arithmetic number, because the mean of its divisors is an integer number (20361840).

Almost surely, 2^140606249 is an apocalyptic number.

It is an amenable number.

140606249 is a deficient number, since it is larger than the sum of its proper divisors (22288471).

140606249 is an equidigital number, since it uses as much as digits as its factorization.

140606249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275239.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 140606249 is about 11857.7505876958. The cubic root of 140606249 is about 519.9978414605.

The spelling of 140606249 in words is "one hundred forty million, six hundred six thousand, two hundred forty-nine".