2151042015 has 16 divisors (see below), whose sum is σ = 3459142368. Its totient is φ = 1141397376.

The previous prime is 2151042007. The next prime is 2151042067. The reversal of 2151042015 is 5102401512.

2151042015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2151042015 - 2³ = 2151042007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2151041982 and 2151042000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361012 + ... + 366921.

It is an arithmetic number, because the mean of its divisors is an integer number (216196398).

Almost surely, 2^2151042015 is an apocalyptic number.

2151042015 is a deficient number, since it is larger than the sum of its proper divisors (1308100353).

2151042015 is a wasteful number, since it uses less digits than its factorization.

2151042015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728138.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2151042015 is about 46379.3274530798. The cubic root of 2151042015 is about 1290.8713570879.

Adding to 2151042015 its reverse (5102401512), we get a palindrome (7253443527).

The spelling of 2151042015 in words is "two billion, one hundred fifty-one million, forty-two thousand, fifteen".