1234155253 has 2 divisors, whose sum is σ = 1234155254. Its totient is φ = 1234155252.

The previous prime is 1234155179. The next prime is 1234155269. The reversal of 1234155253 is 3525514321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701561169 + 532594084 = 26487^2 + 23078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234155253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1234155283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617077626 + 617077627.

It is an arithmetic number, because the mean of its divisors is an integer number (617077627).

Almost surely, 2^1234155253 is an apocalyptic number.

It is an amenable number.

1234155253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234155253 is an equidigital number, since it uses as much as digits as its factorization.

1234155253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 31.

The square root of 1234155253 is about 35130.5458682327. The cubic root of 1234155253 is about 1072.6464473291.

Adding to 1234155253 its reverse (3525514321), we get a palindrome (4759669574).

The spelling of 1234155253 in words is "one billion, two hundred thirty-four million, one hundred fifty-five thousand, two hundred fifty-three".