245267149 has 2 divisors, whose sum is σ = 245267150. Its totient is φ = 245267148.

The previous prime is 245267137. The next prime is 245267159. The reversal of 245267149 is 941762542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204690249 + 40576900 = 14307^2 + 6370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245267149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245267129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122633574 + 122633575.

It is an arithmetic number, because the mean of its divisors is an integer number (122633575).

Almost surely, 2^245267149 is an apocalyptic number.

It is an amenable number.

245267149 is a deficient number, since it is larger than the sum of its proper divisors (1).

245267149 is an equidigital number, since it uses as much as digits as its factorization.

245267149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 245267149 is about 15661.0072792270. The cubic root of 245267149 is about 625.9598257008.

The spelling of 245267149 in words is "two hundred forty-five million, two hundred sixty-seven thousand, one hundred forty-nine".