542938987 has 2 divisors, whose sum is σ = 542938988. Its totient is φ = 542938986.

The previous prime is 542938961. The next prime is 542939009. The reversal of 542938987 is 789839245.

542938987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542938987 - 2⁷ = 542938859 is a prime.

It is not a weakly prime, because it can be changed into another prime (542938387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271469493 + 271469494.

It is an arithmetic number, because the mean of its divisors is an integer number (271469494).

Almost surely, 2^542938987 is an apocalyptic number.

542938987 is a deficient number, since it is larger than the sum of its proper divisors (1).

542938987 is an equidigital number, since it uses as much as digits as its factorization.

542938987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 55.

The square root of 542938987 is about 23301.0511994631. The cubic root of 542938987 is about 815.7999532643.

The spelling of 542938987 in words is "five hundred forty-two million, nine hundred thirty-eight thousand, nine hundred eighty-seven".