226149091 has 4 divisors (see below), whose sum is σ = 258456112. Its totient is φ = 193842072.

The previous prime is 226149059. The next prime is 226149149. The reversal of 226149091 is 190941622.

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 226149091 - 2⁵ = 226149059 is a prime.

It is a super-2 number, since 2×226149091² = 102286822720252562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226149031) 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, 16153500 + ... + 16153513.

It is an arithmetic number, because the mean of its divisors is an integer number (64614028).

Almost surely, 2^226149091 is an apocalyptic number.

226149091 is a deficient number, since it is larger than the sum of its proper divisors (32307021).

226149091 is an equidigital number, since it uses as much as digits as its factorization.

226149091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32307020.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 226149091 is about 15038.2542537357. The cubic root of 226149091 is about 609.2538498442.

The spelling of 226149091 in words is "two hundred twenty-six million, one hundred forty-nine thousand, ninety-one".