2145100101 has 32 divisors (see below), whose sum is σ = 2991479040. Its totient is φ = 1365590016.

The previous prime is 2145100093. The next prime is 2145100117. The reversal of 2145100101 is 1010015412.

It is a happy number.

It is not a de Polignac number, because 2145100101 - 2³ = 2145100093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145100151) 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 31 ways as a sum of consecutive naturals, for example, 4404480 + ... + 4404966.

It is an arithmetic number, because the mean of its divisors is an integer number (93483720).

Almost surely, 2^2145100101 is an apocalyptic number.

It is an amenable number.

2145100101 is a deficient number, since it is larger than the sum of its proper divisors (846378939).

2145100101 is a wasteful number, since it uses less digits than its factorization.

2145100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2145100101 is about 46315.2253692023. The cubic root of 2145100101 is about 1289.6816515082.

Adding to 2145100101 its reverse (1010015412), we get a palindrome (3155115513).

The spelling of 2145100101 in words is "two billion, one hundred forty-five million, one hundred thousand, one hundred one".