2145100001 has 16 divisors (see below), whose sum is σ = 2503327680. Its totient is φ = 1816442880.

The previous prime is 2145099997. The next prime is 2145100007. The reversal of 2145100001 is 1000015412.

It is a cyclic number.

It is not a de Polignac number, because 2145100001 - 2² = 2145099997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2145100007) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 40991 + ... + 77268.

It is an arithmetic number, because the mean of its divisors is an integer number (156457980).

Almost surely, 2^2145100001 is an apocalyptic number.

It is an amenable number.

2145100001 is a deficient number, since it is larger than the sum of its proper divisors (358227679).

2145100001 is a wasteful number, since it uses less digits than its factorization.

2145100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118384.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 2145100001 is about 46315.2242896437. The cubic root of 2145100001 is about 1289.6816314674.

Adding to 2145100001 its reverse (1000015412), we get a palindrome (3145115413).

The spelling of 2145100001 in words is "two billion, one hundred forty-five million, one hundred thousand, one".