226505731 has 8 divisors (see below), whose sum is σ = 229066704. Its totient is φ = 223951200.

The previous prime is 226505687. The next prime is 226505789. The reversal of 226505731 is 137505622.

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-226505731 is a prime.

It is a super-2 number, since 2×226505731² = 102609692351688722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226505693 and 226505702.

It is not an unprimeable number, because it can be changed into a prime (226500731) 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, 112425 + ... + 114421.

It is an arithmetic number, because the mean of its divisors is an integer number (28633338).

Almost surely, 2^226505731 is an apocalyptic number.

226505731 is a deficient number, since it is larger than the sum of its proper divisors (2560973).

226505731 is a wasteful number, since it uses less digits than its factorization.

226505731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 226505731 is about 15050.1073418099. The cubic root of 226505731 is about 609.5739486663.

The spelling of 226505731 in words is "two hundred twenty-six million, five hundred five thousand, seven hundred thirty-one".