140498885 has 4 divisors (see below), whose sum is σ = 168598668. Its totient is φ = 112399104.

The previous prime is 140498861. The next prime is 140498909. The reversal of 140498885 is 588894041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588894041 = 149 ⋅3952309.

It is an interprime number because it is at equal distance from previous prime (140498861) and next prime (140498909).

It can be written as a sum of positive squares in 2 ways, for example, as 38912644 + 101586241 = 6238^2 + 10079^2 .

It is a cyclic number.

It is not a de Polignac number, because 140498885 - 2⁶ = 140498821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14049884 + ... + 14049893.

It is an arithmetic number, because the mean of its divisors is an integer number (42149667).

Almost surely, 2^140498885 is an apocalyptic number.

It is an amenable number.

140498885 is a deficient number, since it is larger than the sum of its proper divisors (28099783).

140498885 is an equidigital number, since it uses as much as digits as its factorization.

140498885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28099782.

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 140498885 is about 11853.2225576001. Note that the first 3 decimals coincide. The cubic root of 140498885 is about 519.8654545890.

The spelling of 140498885 in words is "one hundred forty million, four hundred ninety-eight thousand, eight hundred eighty-five".