140369863 has 2 divisors, whose sum is σ = 140369864. Its totient is φ = 140369862.

The previous prime is 140369861. The next prime is 140369881. The reversal of 140369863 is 368963041.

It is a weak prime.

It is an emirp because it is prime and its reverse (368963041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140369863 - 2¹ = 140369861 is a prime.

Together with 140369861, it forms a pair of twin primes.

It is equal to p_7931875 and since 140369863 and 7931875 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 (140369861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70184931 + 70184932.

It is an arithmetic number, because the mean of its divisors is an integer number (70184932).

Almost surely, 2^140369863 is an apocalyptic number.

140369863 is a deficient number, since it is larger than the sum of its proper divisors (1).

140369863 is an equidigital number, since it uses as much as digits as its factorization.

140369863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 140369863 is about 11847.7788213656. The cubic root of 140369863 is about 519.7062727259.

The spelling of 140369863 in words is "one hundred forty million, three hundred sixty-nine thousand, eight hundred sixty-three".