226157831 has 2 divisors, whose sum is σ = 226157832. Its totient is φ = 226157830.

The previous prime is 226157809. The next prime is 226157839. The reversal of 226157831 is 138751622.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226157831 is a prime.

It is a super-2 number, since 2×226157831² = 102294729045249122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 226157791 and 226157800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226157839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113078915 + 113078916.

It is an arithmetic number, because the mean of its divisors is an integer number (113078916).

Almost surely, 2^226157831 is an apocalyptic number.

226157831 is a deficient number, since it is larger than the sum of its proper divisors (1).

226157831 is an equidigital number, since it uses as much as digits as its factorization.

226157831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 226157831 is about 15038.5448431688. The cubic root of 226157831 is about 609.2616983687.

The spelling of 226157831 in words is "two hundred twenty-six million, one hundred fifty-seven thousand, eight hundred thirty-one".