2261019 has 8 divisors (see below), whose sum is σ = 3173440. Its totient is φ = 1427976.

The previous prime is 2261009. The next prime is 2261023. The reversal of 2261019 is 9101622.

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

It is not a de Polignac number, because 2261019 - 2⁷ = 2260891 is a prime.

It is a super-2 number, since 2×2261019² = 10224413836722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2260986 and 2261004.

It is not an unprimeable number, because it can be changed into a prime (2261009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19777 + ... + 19890.

It is an arithmetic number, because the mean of its divisors is an integer number (396680).

2^2261019 is an apocalyptic number.

2261019 is a deficient number, since it is larger than the sum of its proper divisors (912421).

2261019 is a wasteful number, since it uses less digits than its factorization.

2261019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39689.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2261019 is about 1503.6685140017. The cubic root of 2261019 is about 131.2506321965.

The spelling of 2261019 in words is "two million, two hundred sixty-one thousand, nineteen".