542630531 has 8 divisors (see below), whose sum is σ = 588564144. Its totient is φ = 498254080.

The previous prime is 542630503. The next prime is 542630533. The reversal of 542630531 is 135036245.

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 542630531 - 2²⁶ = 475521667 is a prime.

It is a super-2 number, since 2×542630531² = 588895786346683922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542630494 and 542630503.

It is not an unprimeable number, because it can be changed into a prime (542630533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388565 + ... + 389958.

It is an arithmetic number, because the mean of its divisors is an integer number (73570518).

Almost surely, 2^542630531 is an apocalyptic number.

542630531 is a deficient number, since it is larger than the sum of its proper divisors (45933613).

542630531 is a wasteful number, since it uses less digits than its factorization.

542630531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778581.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 542630531 is about 23294.4313302557. The cubic root of 542630531 is about 815.6454324892.

Adding to 542630531 its reverse (135036245), we get a palindrome (677666776).

The spelling of 542630531 in words is "five hundred forty-two million, six hundred thirty thousand, five hundred thirty-one".