4245252149 has 2 divisors, whose sum is σ = 4245252150. Its totient is φ = 4245252148.

The previous prime is 4245252131. The next prime is 4245252157. The reversal of 4245252149 is 9412525424.

It is a happy number.

4245252149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3506771524 + 738480625 = 59218^2 + 27175^2 .

It is a cyclic number.

It is not a de Polignac number, because 4245252149 - 2²⁰ = 4244203573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4245252169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122626074 + 2122626075.

It is an arithmetic number, because the mean of its divisors is an integer number (2122626075).

Almost surely, 2^4245252149 is an apocalyptic number.

It is an amenable number.

4245252149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245252149 is an equidigital number, since it uses as much as digits as its factorization.

4245252149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 38.

The square root of 4245252149 is about 65155.5995214533. The cubic root of 4245252149 is about 1619.2024918017.

The spelling of 4245252149 in words is "four billion, two hundred forty-five million, two hundred fifty-two thousand, one hundred forty-nine".