1444755797 has 2 divisors, whose sum is σ = 1444755798. Its totient is φ = 1444755796.

The previous prime is 1444755791. The next prime is 1444755841. The reversal of 1444755797 is 7975574441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1322122321 + 122633476 = 36361^2 + 11074^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444755797 - 2⁸ = 1444755541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444755791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722377898 + 722377899.

It is an arithmetic number, because the mean of its divisors is an integer number (722377899).

Almost surely, 2^1444755797 is an apocalyptic number.

It is an amenable number.

1444755797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444755797 is an equidigital number, since it uses as much as digits as its factorization.

1444755797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4939200, while the sum is 53.

The square root of 1444755797 is about 38009.9433964325. The cubic root of 1444755797 is about 1130.4850286837.

The spelling of 1444755797 in words is "one billion, four hundred forty-four million, seven hundred fifty-five thousand, seven hundred ninety-seven".