1245430541555 has 8 divisors (see below), whose sum is σ = 1494768330000. Its totient is φ = 996176646496.

The previous prime is 1245430541507. The next prime is 1245430541657. The reversal of 1245430541555 is 5551450345421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245430541555 - 2¹² = 1245430537459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20940680 + ... + 21000069.

It is an arithmetic number, because the mean of its divisors is an integer number (186846041250).

Almost surely, 2^{1245430541555} is an apocalyptic number.

1245430541555 is a deficient number, since it is larger than the sum of its proper divisors (249337788445).

1245430541555 is an equidigital number, since it uses as much as digits as its factorization.

1245430541555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41946693.

The product of its (nonzero) digits is 1200000, while the sum is 44.

Adding to 1245430541555 its reverse (5551450345421), we get a palindrome (6796880886976).

The spelling of 1245430541555 in words is "one trillion, two hundred forty-five billion, four hundred thirty million, five hundred forty-one thousand, five hundred fifty-five".