140854663 has 4 divisors (see below), whose sum is σ = 142222288. Its totient is φ = 139487040.

The previous prime is 140854631. The next prime is 140854687. The reversal of 140854663 is 366458041.

It is a happy number.

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 140854663 - 2⁵ = 140854631 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 (140854603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683658 + ... + 683863.

It is an arithmetic number, because the mean of its divisors is an integer number (35555572).

Almost surely, 2^140854663 is an apocalyptic number.

140854663 is a deficient number, since it is larger than the sum of its proper divisors (1367625).

140854663 is a wasteful number, since it uses less digits than its factorization.

140854663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367624.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 140854663 is about 11868.2207175296. The cubic root of 140854663 is about 520.3038941117.

The spelling of 140854663 in words is "one hundred forty million, eight hundred fifty-four thousand, six hundred sixty-three".