1148381441 has 2 divisors, whose sum is σ = 1148381442. Its totient is φ = 1148381440.

The previous prime is 1148381431. The next prime is 1148381447. The reversal of 1148381441 is 1441838411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115560000 + 32821441 = 33400^2 + 5729^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148381441 - 2¹⁰ = 1148380417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1148381447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574190720 + 574190721.

It is an arithmetic number, because the mean of its divisors is an integer number (574190721).

Almost surely, 2^1148381441 is an apocalyptic number.

It is an amenable number.

1148381441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148381441 is an equidigital number, since it uses as much as digits as its factorization.

1148381441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 35.

The square root of 1148381441 is about 33887.7771622749. Note that the first 3 decimals coincide. The cubic root of 1148381441 is about 1047.1978014227.

The spelling of 1148381441 in words is "one billion, one hundred forty-eight million, three hundred eighty-one thousand, four hundred forty-one".