245322949 has 2 divisors, whose sum is σ = 245322950. Its totient is φ = 245322948.

The previous prime is 245322947. The next prime is 245323051. The reversal of 245322949 is 949223542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228553924 + 16769025 = 15118^2 + 4095^2 .

It is a cyclic number.

It is not a de Polignac number, because 245322949 - 2¹ = 245322947 is a prime.

Together with 245322947, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245322943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122661474 + 122661475.

It is an arithmetic number, because the mean of its divisors is an integer number (122661475).

Almost surely, 2^245322949 is an apocalyptic number.

It is an amenable number.

245322949 is a deficient number, since it is larger than the sum of its proper divisors (1).

245322949 is an equidigital number, since it uses as much as digits as its factorization.

245322949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 245322949 is about 15662.7886725193. The cubic root of 245322949 is about 626.0072921878.

The spelling of 245322949 in words is "two hundred forty-five million, three hundred twenty-two thousand, nine hundred forty-nine".