1133225251 has 2 divisors, whose sum is σ = 1133225252. Its totient is φ = 1133225250.

The previous prime is 1133225239. The next prime is 1133225267. The reversal of 1133225251 is 1525223311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1133225251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1133225351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566612625 + 566612626.

It is an arithmetic number, because the mean of its divisors is an integer number (566612626).

Almost surely, 2^1133225251 is an apocalyptic number.

1133225251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133225251 is an equidigital number, since it uses as much as digits as its factorization.

1133225251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 1133225251 is about 33663.4111610811. The cubic root of 1133225251 is about 1042.5704571611.

Adding to 1133225251 its reverse (1525223311), we get a palindrome (2658448562).

The spelling of 1133225251 in words is "one billion, one hundred thirty-three million, two hundred twenty-five thousand, two hundred fifty-one".