542115001 has 4 divisors (see below), whose sum is σ = 543117604. Its totient is φ = 541112400.

The previous prime is 542114999. The next prime is 542115019. The reversal of 542115001 is 100511245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 229674025 + 312440976 = 15155^2 + 17676^2 .

It is a cyclic number.

It is not a de Polignac number, because 542115001 - 2¹ = 542114999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542115001.

It is not an unprimeable number, because it can be changed into a prime (542115401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500490 + ... + 501571.

It is an arithmetic number, because the mean of its divisors is an integer number (135779401).

Almost surely, 2^542115001 is an apocalyptic number.

It is an amenable number.

542115001 is a deficient number, since it is larger than the sum of its proper divisors (1002603).

542115001 is a wasteful number, since it uses less digits than its factorization.

542115001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002602.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 542115001 is about 23283.3631806060. The cubic root of 542115001 is about 815.3870473946.

Adding to 542115001 its reverse (100511245), we get a palindrome (642626246).

The spelling of 542115001 in words is "five hundred forty-two million, one hundred fifteen thousand, one".