140211205 has 8 divisors (see below), whose sum is σ = 169326072. Its totient is φ = 111453888.

The previous prime is 140211193. The next prime is 140211217. The reversal of 140211205 is 502112041.

It is an interprime number because it is at equal distance from previous prime (140211193) and next prime (140211217).

It can be written as a sum of positive squares in 4 ways, for example, as 38725729 + 101485476 = 6223^2 + 10074^2 .

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 140211205 - 2⁷ = 140211077 is a prime.

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, 88522 + ... + 90091.

It is an arithmetic number, because the mean of its divisors is an integer number (21165759).

Almost surely, 2^140211205 is an apocalyptic number.

It is an amenable number.

140211205 is a deficient number, since it is larger than the sum of its proper divisors (29114867).

140211205 is a wasteful number, since it uses less digits than its factorization.

140211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178775.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 140211205 is about 11841.0812428595. The cubic root of 140211205 is about 519.5103934450.

Adding to 140211205 its reverse (502112041), we get a palindrome (642323246).

The spelling of 140211205 in words is "one hundred forty million, two hundred eleven thousand, two hundred five".