1253005129 has 2 divisors, whose sum is σ = 1253005130. Its totient is φ = 1253005128.

The previous prime is 1253005121. The next prime is 1253005139. The reversal of 1253005129 is 9215003521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1046651904 + 206353225 = 32352^2 + 14365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253005129 - 2³ = 1253005121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1253005097 and 1253005106.

It is not a weakly prime, because it can be changed into another prime (1253005121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626502564 + 626502565.

It is an arithmetic number, because the mean of its divisors is an integer number (626502565).

Almost surely, 2^1253005129 is an apocalyptic number.

It is an amenable number.

1253005129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253005129 is an equidigital number, since it uses as much as digits as its factorization.

1253005129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1253005129 is about 35397.8124889095. The cubic root of 1253005129 is about 1078.0799013820.

The spelling of 1253005129 in words is "one billion, two hundred fifty-three million, five thousand, one hundred twenty-nine".