542523431 has 8 divisors (see below), whose sum is σ = 574791840. Its totient is φ = 510294528.

The previous prime is 542523407. The next prime is 542523433. The reversal of 542523431 is 134325245.

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 542523431 - 2¹⁴ = 542507047 is a prime.

It is a super-2 number, since 2×542523431² = 588663346368023522, 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 = 542523394 and 542523403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542523433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21230 + ... + 39188.

It is an arithmetic number, because the mean of its divisors is an integer number (71848980).

Almost surely, 2^542523431 is an apocalyptic number.

542523431 is a deficient number, since it is larger than the sum of its proper divisors (32268409).

542523431 is a wasteful number, since it uses less digits than its factorization.

542523431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19753.

The product of its digits is 14400, while the sum is 29.

The square root of 542523431 is about 23292.1323841335. The cubic root of 542523431 is about 815.5917671383.

Adding to 542523431 its reverse (134325245), we get a palindrome (676848676).

The spelling of 542523431 in words is "five hundred forty-two million, five hundred twenty-three thousand, four hundred thirty-one".