1144888897 has 2 divisors, whose sum is σ = 1144888898. Its totient is φ = 1144888896.

The previous prime is 1144888873. The next prime is 1144888907. The reversal of 1144888897 is 7988884411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732027136 + 412861761 = 27056^2 + 20319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144888897 - 2¹¹ = 1144886849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144888397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572444448 + 572444449.

It is an arithmetic number, because the mean of its divisors is an integer number (572444449).

Almost surely, 2^1144888897 is an apocalyptic number.

It is an amenable number.

1144888897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144888897 is an equidigital number, since it uses as much as digits as its factorization.

1144888897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4128768, while the sum is 58.

The square root of 1144888897 is about 33836.2068943905. The cubic root of 1144888897 is about 1046.1351178204.

The spelling of 1144888897 in words is "one billion, one hundred forty-four million, eight hundred eighty-eight thousand, eight hundred ninety-seven".