542115043 has 2 divisors, whose sum is σ = 542115044. Its totient is φ = 542115042.

The previous prime is 542115019. The next prime is 542115089. The reversal of 542115043 is 340511245.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542115043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542114999 and 542115017.

It is not a weakly prime, because it can be changed into another prime (542815043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271057521 + 271057522.

It is an arithmetic number, because the mean of its divisors is an integer number (271057522).

Almost surely, 2^542115043 is an apocalyptic number.

542115043 is a deficient number, since it is larger than the sum of its proper divisors (1).

542115043 is an equidigital number, since it uses as much as digits as its factorization.

542115043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 542115043 is about 23283.3640825376. The cubic root of 542115043 is about 815.3870684518.

Adding to 542115043 its reverse (340511245), we get a palindrome (882626288).

The spelling of 542115043 in words is "five hundred forty-two million, one hundred fifteen thousand, forty-three".