245534239 has 2 divisors, whose sum is σ = 245534240. Its totient is φ = 245534238.

The previous prime is 245534227. The next prime is 245534243. The reversal of 245534239 is 932435542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245534239 - 2²¹ = 243437087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245534198 and 245534207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245534209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122767119 + 122767120.

It is an arithmetic number, because the mean of its divisors is an integer number (122767120).

Almost surely, 2^245534239 is an apocalyptic number.

245534239 is a deficient number, since it is larger than the sum of its proper divisors (1).

245534239 is an equidigital number, since it uses as much as digits as its factorization.

245534239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 37.

The square root of 245534239 is about 15669.5321882946. The cubic root of 245534239 is about 626.1869616483.

The spelling of 245534239 in words is "two hundred forty-five million, five hundred thirty-four thousand, two hundred thirty-nine".