2142566001 has 6 divisors (see below), whose sum is σ = 3094817570. Its totient is φ = 1428377328.

The previous prime is 2142565991. The next prime is 2142566003. The reversal of 2142566001 is 1006652412.

2142566001 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 56 + 600 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1644383601 + 498182400 = 40551^2 + 22320^2 .

It is not a de Polignac number, because 2142566001 - 2⁹ = 2142565489 is a prime.

It is a super-2 number, since 2×2142566001² = 9181178137282264002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142566003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119031436 + ... + 119031453.

Almost surely, 2^2142566001 is an apocalyptic number.

It is an amenable number.

2142566001 is a deficient number, since it is larger than the sum of its proper divisors (952251569).

2142566001 is a wasteful number, since it uses less digits than its factorization.

2142566001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238062895 (or 238062892 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2142566001 is about 46287.8601903350. The cubic root of 2142566001 is about 1289.1735990610.

The spelling of 2142566001 in words is "two billion, one hundred forty-two million, five hundred sixty-six thousand, one".