1210255133 has 2 divisors, whose sum is σ = 1210255134. Its totient is φ = 1210255132.

The previous prime is 1210255099. The next prime is 1210255169. The reversal of 1210255133 is 3315520121.

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., 1201176964 + 9078169 = 34658^2 + 3013^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210255133 - 2²⁴ = 1193477917 is a prime.

It is a super-3 number, since 3×1210255133³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210255099 and 1210255108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210255733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605127566 + 605127567.

It is an arithmetic number, because the mean of its divisors is an integer number (605127567).

Almost surely, 2^1210255133 is an apocalyptic number.

It is an amenable number.

1210255133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210255133 is an equidigital number, since it uses as much as digits as its factorization.

1210255133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1210255133 is about 34788.7213475862. The cubic root of 1210255133 is about 1065.6771269014.

Adding to 1210255133 its reverse (3315520121), we get a palindrome (4525775254).

The spelling of 1210255133 in words is "one billion, two hundred ten million, two hundred fifty-five thousand, one hundred thirty-three".