140111005 has 8 divisors (see below), whose sum is σ = 168196824. Its totient is φ = 112046400.

The previous prime is 140110951. The next prime is 140111011. The reversal of 140111005 is 500111041.

It can be written as a sum of positive squares in 4 ways, for example, as 28026436 + 112084569 = 5294^2 + 10587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140111005 - 2⁷ = 140110877 is a prime.

It is a super-2 number, since 2×140111005² = 39262187444220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22315 + ... + 27895.

It is an arithmetic number, because the mean of its divisors is an integer number (21024603).

Almost surely, 2^140111005 is an apocalyptic number.

It is an amenable number.

140111005 is a deficient number, since it is larger than the sum of its proper divisors (28085819).

140111005 is an equidigital number, since it uses as much as digits as its factorization.

140111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10607.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 140111005 is about 11836.8494541411. The cubic root of 140111005 is about 519.3866103126.

Adding to 140111005 its reverse (500111041), we get a palindrome (640222046).

The spelling of 140111005 in words is "one hundred forty million, one hundred eleven thousand, five".