233949137 has 2 divisors, whose sum is σ = 233949138. Its totient is φ = 233949136.

The previous prime is 233949103. The next prime is 233949139. The reversal of 233949137 is 731949332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230766481 + 3182656 = 15191^2 + 1784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233949137 is a prime.

Together with 233949139, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 233949094 and 233949103.

It is not a weakly prime, because it can be changed into another prime (233949139) 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 as a sum of consecutive naturals, namely, 116974568 + 116974569.

It is an arithmetic number, because the mean of its divisors is an integer number (116974569).

Almost surely, 2^233949137 is an apocalyptic number.

It is an amenable number.

233949137 is a deficient number, since it is larger than the sum of its proper divisors (1).

233949137 is an equidigital number, since it uses as much as digits as its factorization.

233949137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 41.

The square root of 233949137 is about 15295.3959412628. The cubic root of 233949137 is about 616.1793633885.

The spelling of 233949137 in words is "two hundred thirty-three million, nine hundred forty-nine thousand, one hundred thirty-seven".