140864889 has 16 divisors (see below), whose sum is σ = 209893824. Its totient is φ = 83289600.

The previous prime is 140864881. The next prime is 140864891. The reversal of 140864889 is 988468041.

It is not a de Polignac number, because 140864889 - 2³ = 140864881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140864881) 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, 50704 + ... + 53409.

It is an arithmetic number, because the mean of its divisors is an integer number (13118364).

Almost surely, 2^140864889 is an apocalyptic number.

It is an amenable number.

140864889 is a deficient number, since it is larger than the sum of its proper divisors (69028935).

140864889 is a wasteful number, since it uses less digits than its factorization.

140864889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104168.

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 140864889 is about 11868.6515240780. The cubic root of 140864889 is about 520.3164851015.

The spelling of 140864889 in words is "one hundred forty million, eight hundred sixty-four thousand, eight hundred eighty-nine".