1349647529 has 2 divisors, whose sum is σ = 1349647530. Its totient is φ = 1349647528.

The previous prime is 1349647511. The next prime is 1349647619. The reversal of 1349647529 is 9257469431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1242421504 + 107226025 = 35248^2 + 10355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1349647529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1349677529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674823764 + 674823765.

It is an arithmetic number, because the mean of its divisors is an integer number (674823765).

Almost surely, 2^1349647529 is an apocalyptic number.

It is an amenable number.

1349647529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349647529 is an equidigital number, since it uses as much as digits as its factorization.

1349647529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The square root of 1349647529 is about 36737.5493058533. The cubic root of 1349647529 is about 1105.1132549779.

The spelling of 1349647529 in words is "one billion, three hundred forty-nine million, six hundred forty-seven thousand, five hundred twenty-nine".