1029459649 has 2 divisors, whose sum is σ = 1029459650. Its totient is φ = 1029459648.

The previous prime is 1029459637. The next prime is 1029459713. The reversal of 1029459649 is 9469549201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787812624 + 241647025 = 28068^2 + 15545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1029459649 - 2⁷ = 1029459521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1029459619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514729824 + 514729825.

It is an arithmetic number, because the mean of its divisors is an integer number (514729825).

Almost surely, 2^1029459649 is an apocalyptic number.

It is an amenable number.

1029459649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029459649 is an equidigital number, since it uses as much as digits as its factorization.

1029459649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 1029459649 is about 32085.1936101374. The cubic root of 1029459649 is about 1009.7250007772.

The spelling of 1029459649 in words is "one billion, twenty-nine million, four hundred fifty-nine thousand, six hundred forty-nine".