1148326321 has 2 divisors, whose sum is σ = 1148326322. Its totient is φ = 1148326320.

The previous prime is 1148326243. The next prime is 1148326337. The reversal of 1148326321 is 1236238411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086625296 + 61701025 = 32964^2 + 7855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148326321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1148326391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574163160 + 574163161.

It is an arithmetic number, because the mean of its divisors is an integer number (574163161).

Almost surely, 2^1148326321 is an apocalyptic number.

It is an amenable number.

1148326321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148326321 is an equidigital number, since it uses as much as digits as its factorization.

1148326321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 1148326321 is about 33886.9638799347. The cubic root of 1148326321 is about 1047.1810466917.

The spelling of 1148326321 in words is "one billion, one hundred forty-eight million, three hundred twenty-six thousand, three hundred twenty-one".