1254224405545 has 16 divisors (see below), whose sum is σ = 1509565050000. Its totient is φ = 1000383049728.

The previous prime is 1254224405531. The next prime is 1254224405563. The reversal of 1254224405545 is 5455044224521.

It can be written as a sum of positive squares in 8 ways, for example, as 100000780441 + 1154223625104 = 316229^2 + 1074348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254224405545 - 2¹⁹ = 1254223881257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16030681 + ... + 16108729.

It is an arithmetic number, because the mean of its divisors is an integer number (94347815625).

Almost surely, 2^{1254224405545} is an apocalyptic number.

It is an amenable number.

1254224405545 is a deficient number, since it is larger than the sum of its proper divisors (255340644455).

1254224405545 is an equidigital number, since it uses as much as digits as its factorization.

1254224405545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87612.

The product of its (nonzero) digits is 1280000, while the sum is 43.

The spelling of 1254224405545 in words is "one trillion, two hundred fifty-four billion, two hundred twenty-four million, four hundred five thousand, five hundred forty-five".