2281515 has 16 divisors (see below), whose sum is σ = 3693600. Its totient is φ = 1202432.

The previous prime is 2281493. The next prime is 2281529. The reversal of 2281515 is 5151822.

It is a cyclic number.

It is not a de Polignac number, because 2281515 - 2⁹ = 2281003 is a prime.

It is an Ulam number.

2281515 is a lucky 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, 481 + ... + 2189.

It is an arithmetic number, because the mean of its divisors is an integer number (230850).

2^2281515 is an apocalyptic number.

2281515 is a deficient number, since it is larger than the sum of its proper divisors (1412085).

2281515 is a wasteful number, since it uses less digits than its factorization.

2281515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806.

The product of its digits is 800, while the sum is 24.

The square root of 2281515 is about 1510.4684703760. The cubic root of 2281515 is about 131.6460328363.

It can be divided in two parts, 22815 and 15, that multiplied together give a square (342225 = 585²).

The spelling of 2281515 in words is "two million, two hundred eighty-one thousand, five hundred fifteen".