1146643457 has 2 divisors, whose sum is σ = 1146643458. Its totient is φ = 1146643456.

The previous prime is 1146643453. The next prime is 1146643471. The reversal of 1146643457 is 7543466411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759498481 + 387144976 = 27559^2 + 19676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146643457 - 2² = 1146643453 is a prime.

It is not a weakly prime, because it can be changed into another prime (1146643453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573321728 + 573321729.

It is an arithmetic number, because the mean of its divisors is an integer number (573321729).

Almost surely, 2^1146643457 is an apocalyptic number.

It is an amenable number.

1146643457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146643457 is an equidigital number, since it uses as much as digits as its factorization.

1146643457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 1146643457 is about 33862.1242245669. The cubic root of 1146643457 is about 1046.6692511577.

The spelling of 1146643457 in words is "one billion, one hundred forty-six million, six hundred forty-three thousand, four hundred fifty-seven".