201404139 has 4 divisors (see below), whose sum is σ = 268538856. Its totient is φ = 134269424.

The previous prime is 201404113. The next prime is 201404143. The reversal of 201404139 is 931404102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201404139 - 2¹³ = 201395947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201404149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33567354 + ... + 33567359.

It is an arithmetic number, because the mean of its divisors is an integer number (67134714).

Almost surely, 2^201404139 is an apocalyptic number.

201404139 is a deficient number, since it is larger than the sum of its proper divisors (67134717).

201404139 is an equidigital number, since it uses as much as digits as its factorization.

201404139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67134716.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 201404139 is about 14191.6926051828. The cubic root of 201404139 is about 586.1689330731.

The spelling of 201404139 in words is "two hundred one million, four hundred four thousand, one hundred thirty-nine".