140213005 has 8 divisors (see below), whose sum is σ = 168323832. Its totient is φ = 112124928.

The previous prime is 140212997. The next prime is 140213011. The reversal of 140213005 is 500312041.

It can be written as a sum of positive squares in 4 ways, for example, as 14122564 + 126090441 = 3758^2 + 11229^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 140213005 - 2³ = 140212997 is a prime.

It is a super-2 number, since 2×140213005² = 39319373542260050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140213005.

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, 14209 + ... + 21961.

It is an arithmetic number, because the mean of its divisors is an integer number (21040479).

Almost surely, 2^140213005 is an apocalyptic number.

It is an amenable number.

140213005 is a deficient number, since it is larger than the sum of its proper divisors (28110827).

140213005 is an equidigital number, since it uses as much as digits as its factorization.

140213005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11375.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 140213005 is about 11841.1572491881. The cubic root of 140213005 is about 519.5126165548.

Adding to 140213005 its reverse (500312041), we get a palindrome (640525046).

The spelling of 140213005 in words is "one hundred forty million, two hundred thirteen thousand, five".