2281487 has 4 divisors (see below), whose sum is σ = 2457000. Its totient is φ = 2105976.

The previous prime is 2281481. The next prime is 2281493. The reversal of 2281487 is 7841822.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2281481) and next prime (2281493).

It is a cyclic number.

It is not a de Polignac number, because 2281487 - 2⁸ = 2281231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87737 + ... + 87762.

It is an arithmetic number, because the mean of its divisors is an integer number (614250).

2^2281487 is an apocalyptic number.

2281487 is a deficient number, since it is larger than the sum of its proper divisors (175513).

2281487 is a wasteful number, since it uses less digits than its factorization.

2281487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175512.

The product of its digits is 7168, while the sum is 32.

The square root of 2281487 is about 1510.4592016999. The cubic root of 2281487 is about 131.6454942901.

The spelling of 2281487 in words is "two million, two hundred eighty-one thousand, four hundred eighty-seven".