1253570609 has 2 divisors, whose sum is σ = 1253570610. Its totient is φ = 1253570608.

The previous prime is 1253570597. The next prime is 1253570621. The reversal of 1253570609 is 9060753521.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1253570597) and next prime (1253570621).

It can be written as a sum of positive squares in only one way, i.e., 826735009 + 426835600 = 28753^2 + 20660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253570609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253570009) 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, 626785304 + 626785305.

It is an arithmetic number, because the mean of its divisors is an integer number (626785305).

Almost surely, 2^1253570609 is an apocalyptic number.

It is an amenable number.

1253570609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253570609 is an equidigital number, since it uses as much as digits as its factorization.

1253570609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 1253570609 is about 35405.7990871552. The cubic root of 1253570609 is about 1078.2420557959.

The spelling of 1253570609 in words is "one billion, two hundred fifty-three million, five hundred seventy thousand, six hundred nine".