542180489 has 2 divisors, whose sum is σ = 542180490. Its totient is φ = 542180488.

The previous prime is 542180467. The next prime is 542180501. The reversal of 542180489 is 984081245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519475264 + 22705225 = 22792^2 + 4765^2 .

It is a cyclic number.

It is not a de Polignac number, because 542180489 - 2¹⁶ = 542114953 is a prime.

It is equal to p_28456727 and since 542180489 and 28456727 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (542180689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271090244 + 271090245.

It is an arithmetic number, because the mean of its divisors is an integer number (271090245).

Almost surely, 2^542180489 is an apocalyptic number.

It is an amenable number.

542180489 is a deficient number, since it is larger than the sum of its proper divisors (1).

542180489 is an equidigital number, since it uses as much as digits as its factorization.

542180489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 542180489 is about 23284.7694641798. The cubic root of 542180489 is about 815.4198792457.

The spelling of 542180489 in words is "five hundred forty-two million, one hundred eighty thousand, four hundred eighty-nine".