1453145223 has 4 divisors (see below), whose sum is σ = 1937526968. Its totient is φ = 968763480.

The previous prime is 1453145209. The next prime is 1453145249. The reversal of 1453145223 is 3225413541.

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

It is not a de Polignac number, because 1453145223 - 2⁴ = 1453145207 is a prime.

It is a super-2 number, since 2×1453145223² = 4223262078255439458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453145203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242190868 + ... + 242190873.

It is an arithmetic number, because the mean of its divisors is an integer number (484381742).

Almost surely, 2^1453145223 is an apocalyptic number.

1453145223 is a deficient number, since it is larger than the sum of its proper divisors (484381745).

1453145223 is an equidigital number, since it uses as much as digits as its factorization.

1453145223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484381744.

The product of its digits is 14400, while the sum is 30.

The square root of 1453145223 is about 38120.1419593369. The cubic root of 1453145223 is about 1132.6689783870.

Adding to 1453145223 its reverse (3225413541), we get a palindrome (4678558764).

The spelling of 1453145223 in words is "one billion, four hundred fifty-three million, one hundred forty-five thousand, two hundred twenty-three".