201140142409 has 4 divisors (see below), whose sum is σ = 209885366016. Its totient is φ = 192394918804.

The previous prime is 201140142403. The next prime is 201140142443. The reversal of 201140142409 is 904241041102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201140142409 - 2¹⁷ = 201140011337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201140142403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4372611769 + ... + 4372611814.

It is an arithmetic number, because the mean of its divisors is an integer number (52471341504).

Almost surely, 2^201140142409 is an apocalyptic number.

It is an amenable number.

201140142409 is a deficient number, since it is larger than the sum of its proper divisors (8745223607).

201140142409 is an equidigital number, since it uses as much as digits as its factorization.

201140142409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745223606.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 201140142409 in words is "two hundred one billion, one hundred forty million, one hundred forty-two thousand, four hundred nine".