1453220105 has 4 divisors (see below), whose sum is σ = 1743864132. Its totient is φ = 1162576080.

The previous prime is 1453220071. The next prime is 1453220107. The reversal of 1453220105 is 5010223541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 782824441 + 670395664 = 27979^2 + 25892^2 .

It is not a de Polignac number, because 1453220105 - 2¹⁰ = 1453219081 is a prime.

It is a super-3 number, since 3×1453220105³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1453220107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145322006 + ... + 145322015.

It is an arithmetic number, because the mean of its divisors is an integer number (435966033).

Almost surely, 2^1453220105 is an apocalyptic number.

It is an amenable number.

1453220105 is a deficient number, since it is larger than the sum of its proper divisors (290644027).

1453220105 is an equidigital number, since it uses as much as digits as its factorization.

1453220105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290644026.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1453220105 is about 38121.1241308543. The cubic root of 1453220105 is about 1132.6884339010.

Adding to 1453220105 its reverse (5010223541), we get a palindrome (6463443646).

The spelling of 1453220105 in words is "one billion, four hundred fifty-three million, two hundred twenty thousand, one hundred five".