542312005 has 8 divisors (see below), whose sum is σ = 650967192. Its totient is φ = 433721088.

The previous prime is 542311993. The next prime is 542312033. The reversal of 542312005 is 500213245.

It can be written as a sum of positive squares in 4 ways, for example, as 2307361 + 540004644 = 1519^2 + 23238^2 .

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 542312005 - 2⁷ = 542311877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5017 + ... + 33313.

It is an arithmetic number, because the mean of its divisors is an integer number (81370899).

Almost surely, 2^542312005 is an apocalyptic number.

It is an amenable number.

542312005 is a deficient number, since it is larger than the sum of its proper divisors (108655187).

542312005 is a wasteful number, since it uses less digits than its factorization.

542312005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32135.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 542312005 is about 23287.5933707200. The cubic root of 542312005 is about 815.4858056872.

The spelling of 542312005 in words is "five hundred forty-two million, three hundred twelve thousand, five".