231941669 has 2 divisors, whose sum is σ = 231941670. Its totient is φ = 231941668.

The previous prime is 231941603. The next prime is 231941711. The reversal of 231941669 is 966149132.

231941669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217916644 + 14025025 = 14762^2 + 3745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231941669 is a prime.

It is a super-2 number, since 2×231941669² = 107593875637011122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231931669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115970834 + 115970835.

It is an arithmetic number, because the mean of its divisors is an integer number (115970835).

Almost surely, 2^231941669 is an apocalyptic number.

It is an amenable number.

231941669 is a deficient number, since it is larger than the sum of its proper divisors (1).

231941669 is an equidigital number, since it uses as much as digits as its factorization.

231941669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 231941669 is about 15229.6312824704. The cubic root of 231941669 is about 614.4118633170.

The spelling of 231941669 in words is "two hundred thirty-one million, nine hundred forty-one thousand, six hundred sixty-nine".