1145055229 has 2 divisors, whose sum is σ = 1145055230. Its totient is φ = 1145055228.

The previous prime is 1145055203. The next prime is 1145055251. The reversal of 1145055229 is 9225505411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1144807225 + 248004 = 33835^2 + 498^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145055229 - 2⁷ = 1145055101 is a prime.

It is a super-2 number, since 2×1145055229² = 2622302954920484882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145055194 and 1145055203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145055629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572527614 + 572527615.

It is an arithmetic number, because the mean of its divisors is an integer number (572527615).

Almost surely, 2^1145055229 is an apocalyptic number.

It is an amenable number.

1145055229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145055229 is an equidigital number, since it uses as much as digits as its factorization.

1145055229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 1145055229 is about 33838.6647047427. The cubic root of 1145055229 is about 1046.1857769778.

The spelling of 1145055229 in words is "one billion, one hundred forty-five million, fifty-five thousand, two hundred twenty-nine".