245651233 has 2 divisors, whose sum is σ = 245651234. Its totient is φ = 245651232.

The previous prime is 245651183. The next prime is 245651243. The reversal of 245651233 is 332156542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174028864 + 71622369 = 13192^2 + 8463^2 .

It is a cyclic number.

It is not a de Polignac number, because 245651233 - 2¹⁷ = 245520161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245651195 and 245651204.

It is not a weakly prime, because it can be changed into another prime (245651243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122825616 + 122825617.

It is an arithmetic number, because the mean of its divisors is an integer number (122825617).

Almost surely, 2^245651233 is an apocalyptic number.

It is an amenable number.

245651233 is a deficient number, since it is larger than the sum of its proper divisors (1).

245651233 is an equidigital number, since it uses as much as digits as its factorization.

245651233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 245651233 is about 15673.2649119448. The cubic root of 245651233 is about 626.2864026127.

The spelling of 245651233 in words is "two hundred forty-five million, six hundred fifty-one thousand, two hundred thirty-three".