542900989 has 2 divisors, whose sum is σ = 542900990. Its totient is φ = 542900988.

The previous prime is 542900983. The next prime is 542901013. The reversal of 542900989 is 989009245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 507736089 + 35164900 = 22533^2 + 5930^2 .

It is a cyclic number.

It is not a de Polignac number, because 542900989 - 2²⁹ = 6030077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542900983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271450494 + 271450495.

It is an arithmetic number, because the mean of its divisors is an integer number (271450495).

Almost surely, 2^542900989 is an apocalyptic number.

It is an amenable number.

542900989 is a deficient number, since it is larger than the sum of its proper divisors (1).

542900989 is an equidigital number, since it uses as much as digits as its factorization.

542900989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 542900989 is about 23300.2358142573. The cubic root of 542900989 is about 815.7809213592.

The spelling of 542900989 in words is "five hundred forty-two million, nine hundred thousand, nine hundred eighty-nine".