542131161 has 64 divisors (see below), whose sum is σ = 900910080. Its totient is φ = 285085440.

The previous prime is 542131147. The next prime is 542131189. The reversal of 542131161 is 161131245.

It is a happy number.

It is not a de Polignac number, because 542131161 - 2⁶ = 542131097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542131061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1850131 + ... + 1850423.

It is an arithmetic number, because the mean of its divisors is an integer number (14076720).

Almost surely, 2^542131161 is an apocalyptic number.

It is an amenable number.

542131161 is a deficient number, since it is larger than the sum of its proper divisors (358778919).

542131161 is a wasteful number, since it uses less digits than its factorization.

542131161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566.

The product of its digits is 720, while the sum is 24.

The square root of 542131161 is about 23283.7102069236. The cubic root of 542131161 is about 815.3951493187.

The spelling of 542131161 in words is "five hundred forty-two million, one hundred thirty-one thousand, one hundred sixty-one".