140366863 has 32 divisors (see below), whose sum is σ = 181407744. Its totient is φ = 105639552.

The previous prime is 140366833. The next prime is 140366879. The reversal of 140366863 is 368663041.

140366863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140366863 - 2¹⁷ = 140235791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140366803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157806 + ... + 158692.

It is an arithmetic number, because the mean of its divisors is an integer number (5668992).

Almost surely, 2^140366863 is an apocalyptic number.

140366863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140366863 is a deficient number, since it is larger than the sum of its proper divisors (41040881).

140366863 is a wasteful number, since it uses less digits than its factorization.

140366863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 140366863 is about 11847.6522146795. The cubic root of 140366863 is about 519.7025702931.

The spelling of 140366863 in words is "one hundred forty million, three hundred sixty-six thousand, eight hundred sixty-three".