1275250133 has 2 divisors, whose sum is σ = 1275250134. Its totient is φ = 1275250132.

The previous prime is 1275250057. The next prime is 1275250159. The reversal of 1275250133 is 3310525721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 947531524 + 327718609 = 30782^2 + 18103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1275250133 is a prime.

It is a super-3 number, since 3×1275250133³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1275250096 and 1275250105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275250633) 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 as a sum of consecutive naturals, namely, 637625066 + 637625067.

It is an arithmetic number, because the mean of its divisors is an integer number (637625067).

Almost surely, 2^1275250133 is an apocalyptic number.

It is an amenable number.

1275250133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275250133 is an equidigital number, since it uses as much as digits as its factorization.

1275250133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1275250133 is about 35710.6445335281. The cubic root of 1275250133 is about 1084.4223483360.

Adding to 1275250133 its reverse (3310525721), we get a palindrome (4585775854).

The spelling of 1275250133 in words is "one billion, two hundred seventy-five million, two hundred fifty thousand, one hundred thirty-three".