201554724142139 has 8 divisors (see below), whose sum is σ = 204971893107120. Its totient is φ = 198137588083936.

The previous prime is 201554724142133. The next prime is 201554724142151. The reversal of 201554724142139 is 931241427455102.

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 201554724142139 - 2¹⁶ = 201554724076603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201554724142133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4287197 + ... + 20530209.

It is an arithmetic number, because the mean of its divisors is an integer number (25621486638390).

Almost surely, 2^{201554724142139} is an apocalyptic number.

201554724142139 is a deficient number, since it is larger than the sum of its proper divisors (3417168964981).

201554724142139 is a wasteful number, since it uses less digits than its factorization.

201554724142139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16453389.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 201554724142139 in words is "two hundred one trillion, five hundred fifty-four billion, seven hundred twenty-four million, one hundred forty-two thousand, one hundred thirty-nine".