2015601 has 16 divisors (see below), whose sum is σ = 3147648. Its totient is φ = 1123200.

The previous prime is 2015599. The next prime is 2015609. The reversal of 2015601 is 1065102.

It is not a de Polignac number, because 2015601 - 2¹ = 2015599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2015609) 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 15 ways as a sum of consecutive naturals, for example, 310 + ... + 2031.

It is an arithmetic number, because the mean of its divisors is an integer number (196728).

2^2015601 is an apocalyptic number.

2015601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2015601 is a deficient number, since it is larger than the sum of its proper divisors (1132047).

2015601 is a wasteful number, since it uses less digits than its factorization.

2015601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2015601 is about 1419.7186340962. The cubic root of 2015601 is about 126.3188573177.

The spelling of 2015601 in words is "two million, fifteen thousand, six hundred one".