140148863 has 4 divisors (see below), whose sum is σ = 140183208. Its totient is φ = 140114520.

The previous prime is 140148847. The next prime is 140148889. The reversal of 140148863 is 368841041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140148863 - 2⁴ = 140148847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140148823) 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 3 ways as a sum of consecutive naturals, for example, 10073 + ... + 19538.

It is an arithmetic number, because the mean of its divisors is an integer number (35045802).

Almost surely, 2^140148863 is an apocalyptic number.

140148863 is a deficient number, since it is larger than the sum of its proper divisors (34345).

140148863 is an equidigital number, since it uses as much as digits as its factorization.

140148863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34344.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 140148863 is about 11838.4485047662. The cubic root of 140148863 is about 519.4333855287.

The spelling of 140148863 in words is "one hundred forty million, one hundred forty-eight thousand, eight hundred sixty-three".