1144453451 has 4 divisors (see below), whose sum is σ = 1146486792. Its totient is φ = 1142420112.

The previous prime is 1144453439. The next prime is 1144453463. The reversal of 1144453451 is 1543544411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1543544411 = 127 ⋅12153893.

It is an interprime number because it is at equal distance from previous prime (1144453439) and next prime (1144453463).

It is a cyclic number.

It is not a de Polignac number, because 1144453451 - 2¹⁴ = 1144437067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144453411) 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, 1015826 + ... + 1016951.

It is an arithmetic number, because the mean of its divisors is an integer number (286621698).

Almost surely, 2^1144453451 is an apocalyptic number.

1144453451 is a deficient number, since it is larger than the sum of its proper divisors (2033341).

1144453451 is an equidigital number, since it uses as much as digits as its factorization.

1144453451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033340.

The product of its digits is 19200, while the sum is 32.

The square root of 1144453451 is about 33829.7716663888. The cubic root of 1144453451 is about 1046.0024723097.

Adding to 1144453451 its reverse (1543544411), we get a palindrome (2687997862).

The spelling of 1144453451 in words is "one billion, one hundred forty-four million, four hundred fifty-three thousand, four hundred fifty-one".