542462161 has 8 divisors (see below), whose sum is σ = 546520104. Its totient is φ = 538412160.

The previous prime is 542462147. The next prime is 542462171. The reversal of 542462161 is 161264245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15484225 + 526977936 = 3935^2 + 22956^2 .

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 542462161 - 2⁹ = 542461649 is a prime.

It is a super-2 number, since 2×542462161² = 588530392233579842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542462101) 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 7 ways as a sum of consecutive naturals, for example, 231351 + ... + 233683.

It is an arithmetic number, because the mean of its divisors is an integer number (68315013).

Almost surely, 2^542462161 is an apocalyptic number.

It is an amenable number.

542462161 is a deficient number, since it is larger than the sum of its proper divisors (4057943).

542462161 is a wasteful number, since it uses less digits than its factorization.

542462161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971.

The product of its digits is 11520, while the sum is 31.

The square root of 542462161 is about 23290.8170960145. The cubic root of 542462161 is about 815.5610629720.

The spelling of 542462161 in words is "five hundred forty-two million, four hundred sixty-two thousand, one hundred sixty-one".