1253132129 has 2 divisors, whose sum is σ = 1253132130. Its totient is φ = 1253132128.

The previous prime is 1253132119. The next prime is 1253132171. The reversal of 1253132129 is 9212313521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074856225 + 178275904 = 32785^2 + 13352^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253132129 - 2⁴ = 1253132113 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 (1253132119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626566064 + 626566065.

It is an arithmetic number, because the mean of its divisors is an integer number (626566065).

Almost surely, 2^1253132129 is an apocalyptic number.

It is an amenable number.

1253132129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253132129 is an equidigital number, since it uses as much as digits as its factorization.

1253132129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 1253132129 is about 35399.6063396191. The cubic root of 1253132129 is about 1078.1163235585.

The spelling of 1253132129 in words is "one billion, two hundred fifty-three million, one hundred thirty-two thousand, one hundred twenty-nine".