542052015122 has 4 divisors (see below), whose sum is σ = 813078022686. Its totient is φ = 271026007560.

The previous prime is 542052015119. The next prime is 542052015139. The reversal of 542052015122 is 221510250245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 529022020921 + 13029994201 = 727339^2 + 114149^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135513003779 + ... + 135513003782.

Almost surely, 2^542052015122 is an apocalyptic number.

542052015122 is a deficient number, since it is larger than the sum of its proper divisors (271026007564).

542052015122 is a wasteful number, since it uses less digits than its factorization.

542052015122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271026007563.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 542052015122 its reverse (221510250245), we get a palindrome (763562265367).

The spelling of 542052015122 in words is "five hundred forty-two billion, fifty-two million, fifteen thousand, one hundred twenty-two".