1367578219225 has 27 divisors (see below), whose sum is σ = 1772907305533. Its totient is φ = 1046391727040.

The previous prime is 1367578219187. The next prime is 1367578219229. The reversal of 1367578219225 is 5229128757631.

The square root of 1367578219225 is 1169435.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 192843061321 + 1174735157904 = 439139^2 + 1083852^2 .

It is not a de Polignac number, because 1367578219225 - 2¹³ = 1367578211033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1367578219225.

It is not an unprimeable number, because it can be changed into a prime (1367578219229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 134479941 + ... + 134490109.

Almost surely, 2^{1367578219225} is an apocalyptic number.

1367578219225 is the 1169435-th square number.

1367578219225 is the 584718-th centered octagonal number.

It is an amenable number.

1367578219225 is a deficient number, since it is larger than the sum of its proper divisors (405329086308).

1367578219225 is an frugal number, since it uses more digits than its factorization.

1367578219225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20394 (or 10197 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The spelling of 1367578219225 in words is "one trillion, three hundred sixty-seven billion, five hundred seventy-eight million, two hundred nineteen thousand, two hundred twenty-five".