1343633129 has 2 divisors, whose sum is σ = 1343633130. Its totient is φ = 1343633128.

The previous prime is 1343633107. The next prime is 1343633177. The reversal of 1343633129 is 9213363431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813390400 + 530242729 = 28520^2 + 23027^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343633129 - 2¹² = 1343629033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1343633189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671816564 + 671816565.

It is an arithmetic number, because the mean of its divisors is an integer number (671816565).

Almost surely, 2^1343633129 is an apocalyptic number.

It is an amenable number.

1343633129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343633129 is an equidigital number, since it uses as much as digits as its factorization.

1343633129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 35.

The square root of 1343633129 is about 36655.6016046661. The cubic root of 1343633129 is about 1103.4692477962.

The spelling of 1343633129 in words is "one billion, three hundred forty-three million, six hundred thirty-three thousand, one hundred twenty-nine".