2261619 has 6 divisors (see below), whose sum is σ = 3266796. Its totient is φ = 1507740.

The previous prime is 2261617. The next prime is 2261621. The reversal of 2261619 is 9161622.

2261619 = T₂₆₂ + T₂₆₃ + ... + T₃₁₅.

It is an interprime number because it is at equal distance from previous prime (2261617) and next prime (2261621).

It is not a de Polignac number, because 2261619 - 2¹ = 2261617 is a prime.

It is a super-2 number, since 2×2261619² = 10229841002322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261592 and 2261601.

It is not an unprimeable number, because it can be changed into a prime (2261617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125637 + ... + 125654.

It is an arithmetic number, because the mean of its divisors is an integer number (544466).

2^2261619 is an apocalyptic number.

2261619 is a deficient number, since it is larger than the sum of its proper divisors (1005177).

2261619 is a wasteful number, since it uses less digits than its factorization.

2261619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251297 (or 251294 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2261619 is about 1503.8680128256. The cubic root of 2261619 is about 131.2622410352.

The spelling of 2261619 in words is "two million, two hundred sixty-one thousand, six hundred nineteen".