201542464131 has 8 divisors (see below), whose sum is σ = 268728696144. Its totient is φ = 134358937440.

The previous prime is 201542464121. The next prime is 201542464133. The reversal of 201542464131 is 131464245102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201542464131 - 2²⁶ = 201475355267 is a prime.

It is a super-2 number, since 2×201542464131² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 201542464092 and 201542464101.

It is not an unprimeable number, because it can be changed into a prime (201542464133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495600 + ... + 805421.

It is an arithmetic number, because the mean of its divisors is an integer number (33591087018).

Almost surely, 2^201542464131 is an apocalyptic number.

201542464131 is a deficient number, since it is larger than the sum of its proper divisors (67186232013).

201542464131 is a wasteful number, since it uses less digits than its factorization.

201542464131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352661.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 201542464131 in words is "two hundred one billion, five hundred forty-two million, four hundred sixty-four thousand, one hundred thirty-one".