2015408901 has 16 divisors (see below), whose sum is σ = 2957451840. Its totient is φ = 1210648320.

The previous prime is 2015408891. The next prime is 2015408903. The reversal of 2015408901 is 1098045102.

It is a happy number.

It is not a de Polignac number, because 2015408901 - 2¹⁷ = 2015277829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015408903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266506 + ... + 273963.

It is an arithmetic number, because the mean of its divisors is an integer number (184840740).

Almost surely, 2^2015408901 is an apocalyptic number.

It is an amenable number.

2015408901 is a deficient number, since it is larger than the sum of its proper divisors (942042939).

2015408901 is a wasteful number, since it uses less digits than its factorization.

2015408901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540596.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 2015408901 is about 44893.3057481848. The cubic root of 2015408901 is about 1263.1484420576.

The spelling of 2015408901 in words is "two billion, fifteen million, four hundred eight thousand, nine hundred one".