140203141 has 4 divisors (see below), whose sum is σ = 150988012. Its totient is φ = 129418272.

The previous prime is 140203099. The next prime is 140203157. The reversal of 140203141 is 141302041.

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 32251041 + 107952100 = 5679^2 + 10390^2 .

It is a cyclic number.

It is not a de Polignac number, because 140203141 - 2²⁵ = 106648709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140203171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5392416 + ... + 5392441.

It is an arithmetic number, because the mean of its divisors is an integer number (37747003).

Almost surely, 2^140203141 is an apocalyptic number.

It is an amenable number.

140203141 is a deficient number, since it is larger than the sum of its proper divisors (10784871).

140203141 is a wasteful number, since it uses less digits than its factorization.

140203141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10784870.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140203141 is about 11840.7407285186. The cubic root of 140203141 is about 519.5004336796.

Adding to 140203141 its reverse (141302041), we get a palindrome (281505182).

It can be divided in two parts, 14020 and 3141, that added together give a square (17161 = 131²).

The spelling of 140203141 in words is "one hundred forty million, two hundred three thousand, one hundred forty-one".