1245421302469 has 2 divisors, whose sum is σ = 1245421302470. Its totient is φ = 1245421302468.

The previous prime is 1245421302467. The next prime is 1245421302479. The reversal of 1245421302469 is 9642031245421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1185169709025 + 60251593444 = 1088655^2 + 245462^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245421302469 - 2¹ = 1245421302467 is a prime.

It is a super-2 number, since 2×1245421302469² (a number of 25 digits) contains 22 as substring.

Together with 1245421302467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245421302467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622710651234 + 622710651235.

It is an arithmetic number, because the mean of its divisors is an integer number (622710651235).

Almost surely, 2^{1245421302469} is an apocalyptic number.

It is an amenable number.

1245421302469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245421302469 is an equidigital number, since it uses as much as digits as its factorization.

1245421302469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 1245421302469 in words is "one trillion, two hundred forty-five billion, four hundred twenty-one million, three hundred two thousand, four hundred sixty-nine".