2102159601 has 16 divisors (see below), whose sum is σ = 3278222400. Its totient is φ = 1327679424.

The previous prime is 2102159597. The next prime is 2102159621. The reversal of 2102159601 is 1069512012.

2102159601 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 1 + 59 + 601 = 666.

It is not a de Polignac number, because 2102159601 - 2² = 2102159597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2102159621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2048376 + ... + 2049401.

It is an arithmetic number, because the mean of its divisors is an integer number (204888900).

Almost surely, 2^2102159601 is an apocalyptic number.

It is an amenable number.

2102159601 is a deficient number, since it is larger than the sum of its proper divisors (1176062799).

2102159601 is a wasteful number, since it uses less digits than its factorization.

2102159601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097805 (or 4097799 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 2102159601 is about 45849.3140733861. The cubic root of 2102159601 is about 1281.0179892060.

The spelling of 2102159601 in words is "two billion, one hundred two million, one hundred fifty-nine thousand, six hundred one".