1225554453 has 12 divisors (see below), whose sum is σ = 1770725580. Its totient is φ = 816814656.

The previous prime is 1225554443. The next prime is 1225554509. The reversal of 1225554453 is 3544555221.

1225554453 is a `hidden beast` number, since 12 + 2 + 55 + 544 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 225540324 + 1000014129 = 15018^2 + 31623^2 .

It is not a de Polignac number, because 1225554453 - 2⁶ = 1225554389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225554433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20983 + ... + 53771.

It is an arithmetic number, because the mean of its divisors is an integer number (147560465).

Almost surely, 2^1225554453 is an apocalyptic number.

It is an amenable number.

1225554453 is a deficient number, since it is larger than the sum of its proper divisors (545171127).

1225554453 is a wasteful number, since it uses less digits than its factorization.

1225554453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36948 (or 36945 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 1225554453 is about 35007.9198610829. The cubic root of 1225554453 is about 1070.1488869012.

The spelling of 1225554453 in words is "one billion, two hundred twenty-five million, five hundred fifty-four thousand, four hundred fifty-three".