1245025241 has 2 divisors, whose sum is σ = 1245025242. Its totient is φ = 1245025240.

The previous prime is 1245025237. The next prime is 1245025267. The reversal of 1245025241 is 1425205421.

It is an a-pointer prime, because the next prime (1245025267) can be obtained adding 1245025241 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1152942025 + 92083216 = 33955^2 + 9596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245025241 - 2² = 1245025237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245025241.

It is not a weakly prime, because it can be changed into another prime (1245025211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622512620 + 622512621.

It is an arithmetic number, because the mean of its divisors is an integer number (622512621).

Almost surely, 2^1245025241 is an apocalyptic number.

It is an amenable number.

1245025241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245025241 is an equidigital number, since it uses as much as digits as its factorization.

1245025241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1245025241 is about 35284.9152046593. The cubic root of 1245025241 is about 1075.7864059313.

The spelling of 1245025241 in words is "one billion, two hundred forty-five million, twenty-five thousand, two hundred forty-one".