140281105 has 4 divisors (see below), whose sum is σ = 168337332. Its totient is φ = 112224880.

The previous prime is 140281087. The next prime is 140281111. The reversal of 140281105 is 501182041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53567761 + 86713344 = 7319^2 + 9312^2 .

It is not a de Polignac number, because 140281105 - 2⁵ = 140281073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14028106 + ... + 14028115.

It is an arithmetic number, because the mean of its divisors is an integer number (42084333).

Almost surely, 2^140281105 is an apocalyptic number.

It is an amenable number.

140281105 is a deficient number, since it is larger than the sum of its proper divisors (28056227).

140281105 is an equidigital number, since it uses as much as digits as its factorization.

140281105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28056226.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 140281105 is about 11844.0324636502. The cubic root of 140281105 is about 519.5967102356.

The spelling of 140281105 in words is "one hundred forty million, two hundred eighty-one thousand, one hundred five".