1252818433 has 2 divisors, whose sum is σ = 1252818434. Its totient is φ = 1252818432.

The previous prime is 1252818431. The next prime is 1252818491. The reversal of 1252818433 is 3348182521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1250824689 + 1993744 = 35367^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252818433 - 2¹ = 1252818431 is a prime.

Together with 1252818431, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1252818392 and 1252818401.

It is not a weakly prime, because it can be changed into another prime (1252818431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626409216 + 626409217.

It is an arithmetic number, because the mean of its divisors is an integer number (626409217).

Almost surely, 2^1252818433 is an apocalyptic number.

It is an amenable number.

1252818433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252818433 is an equidigital number, since it uses as much as digits as its factorization.

1252818433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 1252818433 is about 35395.1752785602. The cubic root of 1252818433 is about 1078.0263545933.

The spelling of 1252818433 in words is "one billion, two hundred fifty-two million, eight hundred eighteen thousand, four hundred thirty-three".