2051515 has 8 divisors (see below), whose sum is σ = 2484288. Its totient is φ = 1626240.

The previous prime is 2051507. The next prime is 2051537. The reversal of 2051515 is 5151502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2051515 - 2³ = 2051507 is a prime.

It is a Duffinian number.

2051515 is a modest number, since divided by 1515 gives 205 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2051492 and 2051501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (310536).

2^2051515 is an apocalyptic number.

2051515 is a deficient number, since it is larger than the sum of its proper divisors (432773).

2051515 is a wasteful number, since it uses less digits than its factorization.

2051515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 2051515 is about 1432.3110695655. The cubic root of 2051515 is about 127.0646951674.

The spelling of 2051515 in words is "two million, fifty-one thousand, five hundred fifteen".