226581697 has 12 divisors (see below), whose sum is σ = 235972548. Its totient is φ = 217545600.

The previous prime is 226581643. The next prime is 226581701. The reversal of 226581697 is 796185622.

It can be written as a sum of positive squares in 2 ways, for example, as 150700176 + 75881521 = 12276^2 + 8711^2 .

It is a de Polignac number, because none of the positive numbers 2^k-226581697 is a prime.

It is a Duffinian number.

Its product of digits (362880) is a multiple of the sum of its prime factors (1920).

It is not an unprimeable number, because it can be changed into a prime (226581097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130797 + ... + 132517.

It is an arithmetic number, because the mean of its divisors is an integer number (19664379).

Almost surely, 2^226581697 is an apocalyptic number.

It is an amenable number.

226581697 is a deficient number, since it is larger than the sum of its proper divisors (9390851).

226581697 is a wasteful number, since it uses less digits than its factorization.

226581697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920 (or 1889 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 226581697 is about 15052.6308996135. The cubic root of 226581697 is about 609.6420878086.

The spelling of 226581697 in words is "two hundred twenty-six million, five hundred eighty-one thousand, six hundred ninety-seven".