245374247 has 2 divisors, whose sum is σ = 245374248. Its totient is φ = 245374246.

The previous prime is 245374229. The next prime is 245374313. The reversal of 245374247 is 742473542.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245374247 - 2⁸ = 245373991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245374247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245376247) 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, 122687123 + 122687124.

It is an arithmetic number, because the mean of its divisors is an integer number (122687124).

Almost surely, 2^245374247 is an apocalyptic number.

245374247 is a deficient number, since it is larger than the sum of its proper divisors (1).

245374247 is an equidigital number, since it uses as much as digits as its factorization.

245374247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 38.

The square root of 245374247 is about 15664.4261624868. The cubic root of 245374247 is about 626.0509226813.

The spelling of 245374247 in words is "two hundred forty-five million, three hundred seventy-four thousand, two hundred forty-seven".