229086631 has 4 divisors (see below), whose sum is σ = 236986200. Its totient is φ = 221187064.

The previous prime is 229086607. The next prime is 229086661. The reversal of 229086631 is 136680922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229086631 is a prime.

It is a super-2 number, since 2×229086631² = 104961369005860322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229086661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3949741 + ... + 3949798.

It is an arithmetic number, because the mean of its divisors is an integer number (59246550).

Almost surely, 2^229086631 is an apocalyptic number.

229086631 is a deficient number, since it is larger than the sum of its proper divisors (7899569).

229086631 is an equidigital number, since it uses as much as digits as its factorization.

229086631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7899568.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 229086631 is about 15135.6080485721. The cubic root of 229086631 is about 611.8804562027.

The spelling of 229086631 in words is "two hundred twenty-nine million, eighty-six thousand, six hundred thirty-one".