2281019 has 4 divisors (see below), whose sum is σ = 2456496. Its totient is φ = 2105544.

The previous prime is 2281003. The next prime is 2281033. The reversal of 2281019 is 9101822.

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

It is a cyclic number.

It is not a de Polignac number, because 2281019 - 2⁴ = 2281003 is a prime.

It is a super-2 number, since 2×2281019² = 10406095356722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2280985 and 2281003.

It is not an unprimeable number, because it can be changed into a prime (2281039) 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, 87719 + ... + 87744.

It is an arithmetic number, because the mean of its divisors is an integer number (614124).

2^2281019 is an apocalyptic number.

2281019 is a deficient number, since it is larger than the sum of its proper divisors (175477).

2281019 is a wasteful number, since it uses less digits than its factorization.

2281019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175476.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2281019 is about 1510.3042739793. The cubic root of 2281019 is about 131.6364922219.

The spelling of 2281019 in words is "two million, two hundred eighty-one thousand, nineteen".