1225154445413 has 8 divisors (see below), whose sum is σ = 1225669812120. Its totient is φ = 1224639187200.

The previous prime is 1225154445379. The next prime is 1225154445443. The reversal of 1225154445413 is 3145444515221.

It can be written as a sum of positive squares in 4 ways, for example, as 159259259329 + 1065895186084 = 399073^2 + 1032422^2 .

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 1225154445413 - 2¹⁸ = 1225154183269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225154445443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28536263 + ... + 28579163.

It is an arithmetic number, because the mean of its divisors is an integer number (153208726515).

Almost surely, 2^{1225154445413} is an apocalyptic number.

It is an amenable number.

1225154445413 is a deficient number, since it is larger than the sum of its proper divisors (515366707).

1225154445413 is an equidigital number, since it uses as much as digits as its factorization.

1225154445413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54247.

The product of its digits is 384000, while the sum is 41.

The spelling of 1225154445413 in words is "one trillion, two hundred twenty-five billion, one hundred fifty-four million, four hundred forty-five thousand, four hundred thirteen".