542859389 has 2 divisors, whose sum is σ = 542859390. Its totient is φ = 542859388.

The previous prime is 542859329. The next prime is 542859437. The reversal of 542859389 is 983958245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318908164 + 223951225 = 17858^2 + 14965^2 .

It is a cyclic number.

It is not a de Polignac number, because 542859389 - 2²⁰ = 541810813 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542859389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542859329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271429694 + 271429695.

It is an arithmetic number, because the mean of its divisors is an integer number (271429695).

Almost surely, 2^542859389 is an apocalyptic number.

It is an amenable number.

542859389 is a deficient number, since it is larger than the sum of its proper divisors (1).

542859389 is an equidigital number, since it uses as much as digits as its factorization.

542859389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 53.

The square root of 542859389 is about 23299.3431023280. The cubic root of 542859389 is about 815.7600843166.

The spelling of 542859389 in words is "five hundred forty-two million, eight hundred fifty-nine thousand, three hundred eighty-nine".