542187323 has 4 divisors (see below), whose sum is σ = 542281728. Its totient is φ = 542092920.

The previous prime is 542187319. The next prime is 542187361. The reversal of 542187323 is 323781245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542187323 - 2² = 542187319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542177323) 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, 37988 + ... + 50273.

It is an arithmetic number, because the mean of its divisors is an integer number (135570432).

Almost surely, 2^542187323 is an apocalyptic number.

542187323 is a deficient number, since it is larger than the sum of its proper divisors (94405).

542187323 is an equidigital number, since it uses as much as digits as its factorization.

542187323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94404.

The product of its digits is 40320, while the sum is 35.

The square root of 542187323 is about 23284.9162120030. The cubic root of 542187323 is about 815.4233052611.

The spelling of 542187323 in words is "five hundred forty-two million, one hundred eighty-seven thousand, three hundred twenty-three".