542521103 has 2 divisors, whose sum is σ = 542521104. Its totient is φ = 542521102.

The previous prime is 542521099. The next prime is 542521169. The reversal of 542521103 is 301125245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542521103 - 2² = 542521099 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542521403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271260551 + 271260552.

It is an arithmetic number, because the mean of its divisors is an integer number (271260552).

Almost surely, 2^542521103 is an apocalyptic number.

542521103 is a deficient number, since it is larger than the sum of its proper divisors (1).

542521103 is an equidigital number, since it uses as much as digits as its factorization.

542521103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 542521103 is about 23292.0824101238. The cubic root of 542521103 is about 815.5906005525.

Adding to 542521103 its reverse (301125245), we get a palindrome (843646348).

It can be divided in two parts, 54252 and 1103, that added together give a palindrome (55355).

The spelling of 542521103 in words is "five hundred forty-two million, five hundred twenty-one thousand, one hundred three".