226251561 has 8 divisors (see below), whose sum is σ = 308087424. Its totient is φ = 147625040.

The previous prime is 226251539. The next prime is 226251611. The reversal of 226251561 is 165152622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226251561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (226251061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802170 + ... + 802451.

It is an arithmetic number, because the mean of its divisors is an integer number (38510928).

Almost surely, 2^226251561 is an apocalyptic number.

It is an amenable number.

226251561 is a deficient number, since it is larger than the sum of its proper divisors (81835863).

226251561 is a wasteful number, since it uses less digits than its factorization.

226251561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604671.

The product of its digits is 7200, while the sum is 30.

The square root of 226251561 is about 15041.6608457976. The cubic root of 226251561 is about 609.3458552478.

The spelling of 226251561 in words is "two hundred twenty-six million, two hundred fifty-one thousand, five hundred sixty-one".