542120001 has 4 divisors (see below), whose sum is σ = 722826672. Its totient is φ = 361413332.

The previous prime is 542119969. The next prime is 542120009. The reversal of 542120001 is 100021245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 542120001 - 2⁵ = 542119969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90353331 + ... + 90353336.

It is an arithmetic number, because the mean of its divisors is an integer number (180706668).

Almost surely, 2^542120001 is an apocalyptic number.

It is an amenable number.

542120001 is a deficient number, since it is larger than the sum of its proper divisors (180706671).

542120001 is a wasteful number, since it uses less digits than its factorization.

542120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180706670.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 542120001 is about 23283.4705531628. The cubic root of 542120001 is about 815.3895541953.

Adding to 542120001 its reverse (100021245), we get a palindrome (642141246).

The spelling of 542120001 in words is "five hundred forty-two million, one hundred twenty thousand, one".