1252727329 has 16 divisors (see below), whose sum is σ = 1480032256. Its totient is φ = 1037610000.

The previous prime is 1252727321. The next prime is 1252727347. The reversal of 1252727329 is 9237272521.

It is a happy number.

It is not a de Polignac number, because 1252727329 - 2³ = 1252727321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1252727291 and 1252727300.

It is not an unprimeable number, because it can be changed into a prime (1252727321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159124 + ... + 166810.

It is an arithmetic number, because the mean of its divisors is an integer number (92502016).

Almost surely, 2^1252727329 is an apocalyptic number.

It is an amenable number.

1252727329 is a deficient number, since it is larger than the sum of its proper divisors (227304927).

1252727329 is an equidigital number, since it uses as much as digits as its factorization.

1252727329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476.

The product of its digits is 105840, while the sum is 40.

The square root of 1252727329 is about 35393.8883001006. Note that the first 3 decimals coincide. The cubic root of 1252727329 is about 1078.0002228754. Note that the first 3 decimals are identical.

The spelling of 1252727329 in words is "one billion, two hundred fifty-two million, seven hundred twenty-seven thousand, three hundred twenty-nine".