1354930920225 has 45 divisors (see below), whose sum is σ = 2509897466307. Its totient is φ = 722601887760.

The previous prime is 1354930920223. The next prime is 1354930920247. The reversal of 1354930920225 is 5220290394531.

The square root of 1354930920225 is 1164015.

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

1354930920225 is a `hidden beast` number, since 1 + 354 + 93 + 0 + 9 + 202 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 487775131281 + 867155788944 = 698409^2 + 931212^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 1354930920225 - 2¹ = 1354930920223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1354930920223) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 52367742 + ... + 52393608.

Almost surely, 2^{1354930920225} is an apocalyptic number.

1354930920225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1354930920225 is the 1164015-th square number.

1354930920225 is the 582008-th centered octagonal number.

It is an amenable number.

1354930920225 is a deficient number, since it is larger than the sum of its proper divisors (1154966546082).

1354930920225 is an frugal number, since it uses more digits than its factorization.

1354930920225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51756 (or 25875 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 1354930920225 in words is "one trillion, three hundred fifty-four billion, nine hundred thirty million, nine hundred twenty thousand, two hundred twenty-five".