1444451451 has 16 divisors (see below), whose sum is σ = 2013258240. Its totient is φ = 919455680.

The previous prime is 1444451441. The next prime is 1444451467. The reversal of 1444451451 is 1541544441.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444451451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1444451431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20866 + ... + 57656.

It is an arithmetic number, because the mean of its divisors is an integer number (125828640).

Almost surely, 2^1444451451 is an apocalyptic number.

1444451451 is a deficient number, since it is larger than the sum of its proper divisors (568806789).

1444451451 is a wasteful number, since it uses less digits than its factorization.

1444451451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37386.

The product of its digits is 25600, while the sum is 33.

The square root of 1444451451 is about 38005.9396805289. The cubic root of 1444451451 is about 1130.4056420821.

Adding to 1444451451 its reverse (1541544441), we get a palindrome (2985995892).

The spelling of 1444451451 in words is "one billion, four hundred forty-four million, four hundred fifty-one thousand, four hundred fifty-one".