140966839 has 16 divisors (see below), whose sum is σ = 167735232. Its totient is φ = 117139968.

The previous prime is 140966831. The next prime is 140966887. The reversal of 140966839 is 938669041.

It is a cyclic number.

It is not a de Polignac number, because 140966839 - 2³ = 140966831 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 (140966831) 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, 8784 + ... + 18949.

It is an arithmetic number, because the mean of its divisors is an integer number (10483452).

Almost surely, 2^140966839 is an apocalyptic number.

140966839 is a deficient number, since it is larger than the sum of its proper divisors (26768393).

140966839 is a wasteful number, since it uses less digits than its factorization.

140966839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27786.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 140966839 is about 11872.9456749368. The cubic root of 140966839 is about 520.4419799968.

The spelling of 140966839 in words is "one hundred forty million, nine hundred sixty-six thousand, eight hundred thirty-nine".