1253422133 has 2 divisors, whose sum is σ = 1253422134. Its totient is φ = 1253422132.

The previous prime is 1253422129. The next prime is 1253422139. The reversal of 1253422133 is 3312243521.

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., 1025472529 + 227949604 = 32023^2 + 15098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253422133 - 2² = 1253422129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253422139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626711066 + 626711067.

It is an arithmetic number, because the mean of its divisors is an integer number (626711067).

Almost surely, 2^1253422133 is an apocalyptic number.

It is an amenable number.

1253422133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253422133 is an equidigital number, since it uses as much as digits as its factorization.

1253422133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 1253422133 is about 35403.7022499060. The cubic root of 1253422133 is about 1078.1994842307.

Adding to 1253422133 its reverse (3312243521), we get a palindrome (4565665654).

It can be divided in two parts, 125 and 3422133, that multiplied together give a triangular number (427766625 = T₂₉₂₄₉).

The spelling of 1253422133 in words is "one billion, two hundred fifty-three million, four hundred twenty-two thousand, one hundred thirty-three".