226248991 has 4 divisors (see below), whose sum is σ = 226421584. Its totient is φ = 226076400.

The previous prime is 226248959. The next prime is 226249003. The reversal of 226248991 is 199842622.

It is a happy number.

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 226248991 - 2⁵ = 226248959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226248091) 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, 84315 + ... + 86956.

It is an arithmetic number, because the mean of its divisors is an integer number (56605396).

Almost surely, 2^226248991 is an apocalyptic number.

226248991 is a deficient number, since it is larger than the sum of its proper divisors (172593).

226248991 is a wasteful number, since it uses less digits than its factorization.

226248991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172592.

The product of its digits is 124416, while the sum is 43.

The square root of 226248991 is about 15041.5754161590. The cubic root of 226248991 is about 609.3435480449.

The spelling of 226248991 in words is "two hundred twenty-six million, two hundred forty-eight thousand, nine hundred ninety-one".