245045149 has 2 divisors, whose sum is σ = 245045150. Its totient is φ = 245045148.

The previous prime is 245045083. The next prime is 245045167. The reversal of 245045149 is 941540542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164942649 + 80102500 = 12843^2 + 8950^2 .

It is a cyclic number.

It is not a de Polignac number, because 245045149 - 2²⁷ = 110827421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245045249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122522574 + 122522575.

It is an arithmetic number, because the mean of its divisors is an integer number (122522575).

Almost surely, 2^245045149 is an apocalyptic number.

It is an amenable number.

245045149 is a deficient number, since it is larger than the sum of its proper divisors (1).

245045149 is an equidigital number, since it uses as much as digits as its factorization.

245045149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 245045149 is about 15653.9180079621. The cubic root of 245045149 is about 625.7709092074.

The spelling of 245045149 in words is "two hundred forty-five million, forty-five thousand, one hundred forty-nine".