2015102001 has 32 divisors (see below), whose sum is σ = 2978906112. Its totient is φ = 1201426560.

The previous prime is 2015101997. The next prime is 2015102041. The reversal of 2015102001 is 1002015102.

It is not a de Polignac number, because 2015102001 - 2² = 2015101997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2015102041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1210896 + ... + 1212558.

It is an arithmetic number, because the mean of its divisors is an integer number (93090816).

Almost surely, 2^2015102001 is an apocalyptic number.

It is an amenable number.

2015102001 is a deficient number, since it is larger than the sum of its proper divisors (963804111).

2015102001 is a wasteful number, since it uses less digits than its factorization.

2015102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2015102001 is about 44889.8875137820. The cubic root of 2015102001 is about 1263.0843227391.

Adding to 2015102001 its reverse (1002015102), we get a palindrome (3017117103).

The spelling of 2015102001 in words is "two billion, fifteen million, one hundred two thousand, one".