542372531 has 4 divisors (see below), whose sum is σ = 544741200. Its totient is φ = 540003864.

The previous prime is 542372513. The next prime is 542372549. The reversal of 542372531 is 135273245.

542372531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135273245 = 5 ⋅27054649.

It is an interprime number because it is at equal distance from previous prime (542372513) and next prime (542372549).

It is a cyclic number.

It is not a de Polignac number, because 542372531 - 2¹⁴ = 542356147 is a prime.

It is a super-2 number, since 2×542372531² = 588335924766691922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542372731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183991 + ... + 1184448.

It is an arithmetic number, because the mean of its divisors is an integer number (136185300).

Almost surely, 2^542372531 is an apocalyptic number.

542372531 is a deficient number, since it is larger than the sum of its proper divisors (2368669).

542372531 is a wasteful number, since it uses less digits than its factorization.

542372531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368668.

The product of its digits is 25200, while the sum is 32.

The square root of 542372531 is about 23288.8928676311. The cubic root of 542372531 is about 815.5161426257.

The spelling of 542372531 in words is "five hundred forty-two million, three hundred seventy-two thousand, five hundred thirty-one".