542061547 has 2 divisors, whose sum is σ = 542061548. Its totient is φ = 542061546.

The previous prime is 542061521. The next prime is 542061571. The reversal of 542061547 is 745160245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542061547 - 2²³ = 533672939 is a prime.

It is equal to p_28450825 and since 542061547 and 28450825 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 (542061587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271030773 + 271030774.

It is an arithmetic number, because the mean of its divisors is an integer number (271030774).

Almost surely, 2^542061547 is an apocalyptic number.

542061547 is a deficient number, since it is larger than the sum of its proper divisors (1).

542061547 is an equidigital number, since it uses as much as digits as its factorization.

542061547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 542061547 is about 23282.2152511311. The cubic root of 542061547 is about 815.3602467270.

The spelling of 542061547 in words is "five hundred forty-two million, sixty-one thousand, five hundred forty-seven".