542523131 has 8 divisors (see below), whose sum is σ = 584358720. Its totient is φ = 502015752.

The previous prime is 542523089. The next prime is 542523139. The reversal of 542523131 is 131325245.

It is a happy number.

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 542523131 - 2¹⁰ = 542522107 is a prime.

It is a super-2 number, since 2×542523131² = 588662695340086322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542523131.

It is not an unprimeable number, because it can be changed into a prime (542523139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331205 + ... + 332838.

It is an arithmetic number, because the mean of its divisors is an integer number (73044840).

Almost surely, 2^542523131 is an apocalyptic number.

542523131 is a deficient number, since it is larger than the sum of its proper divisors (41835589).

542523131 is a wasteful number, since it uses less digits than its factorization.

542523131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664105.

The product of its digits is 3600, while the sum is 26.

The square root of 542523131 is about 23292.1259441898. The cubic root of 542523131 is about 815.5916168052.

Adding to 542523131 its reverse (131325245), we get a palindrome (673848376).

The spelling of 542523131 in words is "five hundred forty-two million, five hundred twenty-three thousand, one hundred thirty-one".