1125223361 has 2 divisors, whose sum is σ = 1125223362. Its totient is φ = 1125223360.

The previous prime is 1125223349. The next prime is 1125223367. The reversal of 1125223361 is 1633225211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 734410000 + 390813361 = 27100^2 + 19769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125223361 - 2¹⁴ = 1125206977 is a prime.

It is a super-2 number, since 2×1125223361² = 2532255224280272642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1125223361.

It is not a weakly prime, because it can be changed into another prime (1125223367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562611680 + 562611681.

It is an arithmetic number, because the mean of its divisors is an integer number (562611681).

Almost surely, 2^1125223361 is an apocalyptic number.

It is an amenable number.

1125223361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125223361 is an equidigital number, since it uses as much as digits as its factorization.

1125223361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 1125223361 is about 33544.3491664393. The cubic root of 1125223361 is about 1040.1107380234.

Adding to 1125223361 its reverse (1633225211), we get a palindrome (2758448572).

The spelling of 1125223361 in words is "one billion, one hundred twenty-five million, two hundred twenty-three thousand, three hundred sixty-one".