542000999 has 2 divisors, whose sum is σ = 542001000. Its totient is φ = 542000998.

The previous prime is 542000971. The next prime is 542001001. The reversal of 542000999 is 999000245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542000999 - 2⁸ = 542000743 is a prime.

Together with 542001001, it forms a pair of twin primes.

It is a Chen prime.

542000999 is a modest number, since divided by 999 gives 542 as remainder.

It is equal to p_28447832 and since 542000999 and 28447832 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542000929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271000499 + 271000500.

It is an arithmetic number, because the mean of its divisors is an integer number (271000500).

Almost surely, 2^542000999 is an apocalyptic number.

542000999 is a deficient number, since it is larger than the sum of its proper divisors (1).

542000999 is an equidigital number, since it uses as much as digits as its factorization.

542000999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 542000999 is about 23280.9149089979. The cubic root of 542000999 is about 815.3298871545.

The spelling of 542000999 in words is "five hundred forty-two million, nine hundred ninety-nine", and thus it is an aban number.