1454322638209 has 9 divisors (see below), whose sum is σ = 1691772888897. Its totient is φ = 1246555025604.

The previous prime is 1454322638203. The next prime is 1454322638267. The reversal of 1454322638209 is 9028362234541.

The square root of 1454322638209 is 1205953.

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

It is not a de Polignac number, because 1454322638209 - 2⁹ = 1454322637697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (1454322638203) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8355532 + ... + 8527810.

It is an arithmetic number, because the mean of its divisors is an integer number (187974765433).

Almost surely, 2^{1454322638209} is an apocalyptic number.

1454322638209 is the 1205953-rd square number.

1454322638209 is the 602977-th centered octagonal number.

It is an amenable number.

1454322638209 is a deficient number, since it is larger than the sum of its proper divisors (237450250688).

1454322638209 is an frugal number, since it uses more digits than its factorization.

1454322638209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344572 (or 172286 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

Multiplying 1454322638209 by its sum of digits (49), we get a square (71261809272241 = 8441671²).

1454322638209 divided by its sum of digits (49) gives a square (29680053841 = 172279²).

The spelling of 1454322638209 in words is "one trillion, four hundred fifty-four billion, three hundred twenty-two million, six hundred thirty-eight thousand, two hundred nine".