140236863 has 16 divisors (see below), whose sum is σ = 202725600. Its totient is φ = 85716864.

The previous prime is 140236849. The next prime is 140236867. The reversal of 140236863 is 368632041.

It is not a de Polignac number, because 140236863 - 2⁶ = 140236799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140236867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6256 + ... + 17877.

It is an arithmetic number, because the mean of its divisors is an integer number (12670350).

Almost surely, 2^140236863 is an apocalyptic number.

140236863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140236863 is a deficient number, since it is larger than the sum of its proper divisors (62488737).

140236863 is a wasteful number, since it uses less digits than its factorization.

140236863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24298.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 140236863 is about 11842.1646247635. The cubic root of 140236863 is about 519.5420808428.

The spelling of 140236863 in words is "one hundred forty million, two hundred thirty-six thousand, eight hundred sixty-three".