1245454654397 has 2 divisors, whose sum is σ = 1245454654398. Its totient is φ = 1245454654396.

The previous prime is 1245454654391. The next prime is 1245454654417. The reversal of 1245454654397 is 7934564545421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022664990361 + 222789664036 = 1011269^2 + 472006^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245454654397 - 2¹⁴ = 1245454638013 is a prime.

It is a super-2 number, since 2×1245454654397² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245454654391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622727327198 + 622727327199.

It is an arithmetic number, because the mean of its divisors is an integer number (622727327199).

Almost surely, 2^{1245454654397} is an apocalyptic number.

It is an amenable number.

1245454654397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245454654397 is an equidigital number, since it uses as much as digits as its factorization.

1245454654397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576000, while the sum is 59.

The spelling of 1245454654397 in words is "one trillion, two hundred forty-five billion, four hundred fifty-four million, six hundred fifty-four thousand, three hundred ninety-seven".