226257919 has 4 divisors (see below), whose sum is σ = 226293496. Its totient is φ = 226222344.

The previous prime is 226257893. The next prime is 226257929. The reversal of 226257919 is 919752622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 919752622 = 2 ⋅459876311.

It is a cyclic number.

It is not a de Polignac number, because 226257919 - 2⁵ = 226257887 is a prime.

It is a super-2 number, since 2×226257919² = 102385291820421122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226257929) 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, 5349 + ... + 21934.

It is an arithmetic number, because the mean of its divisors is an integer number (56573374).

Almost surely, 2^226257919 is an apocalyptic number.

226257919 is a deficient number, since it is larger than the sum of its proper divisors (35577).

226257919 is an equidigital number, since it uses as much as digits as its factorization.

226257919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35576.

The product of its digits is 136080, while the sum is 43.

The square root of 226257919 is about 15041.8721906550. The cubic root of 226257919 is about 609.3515630311.

The spelling of 226257919 in words is "two hundred twenty-six million, two hundred fifty-seven thousand, nine hundred nineteen".