231056417 has 2 divisors, whose sum is σ = 231056418. Its totient is φ = 231056416.

The previous prime is 231056407. The next prime is 231056431. The reversal of 231056417 is 714650132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211731601 + 19324816 = 14551^2 + 4396^2 .

It is a cyclic number.

It is not a de Polignac number, because 231056417 - 2¹⁰ = 231055393 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231056417.

It is not a weakly prime, because it can be changed into another prime (231056407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115528208 + 115528209.

It is an arithmetic number, because the mean of its divisors is an integer number (115528209).

Almost surely, 2^231056417 is an apocalyptic number.

It is an amenable number.

231056417 is a deficient number, since it is larger than the sum of its proper divisors (1).

231056417 is an equidigital number, since it uses as much as digits as its factorization.

231056417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 231056417 is about 15200.5400233018. The cubic root of 231056417 is about 613.6291912714.

The spelling of 231056417 in words is "two hundred thirty-one million, fifty-six thousand, four hundred seventeen".