1125223669 has 4 divisors (see below), whose sum is σ = 1125889996. Its totient is φ = 1124557344.

The previous prime is 1125223667. The next prime is 1125223739. The reversal of 1125223669 is 9663225211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 382007025 + 743216644 = 19545^2 + 27262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125223669 - 2¹ = 1125223667 is a prime.

It is a super-2 number, since 2×1125223669² = 2532256610555643122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125223667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330624 + ... + 334009.

It is an arithmetic number, because the mean of its divisors is an integer number (281472499).

Almost surely, 2^1125223669 is an apocalyptic number.

It is an amenable number.

1125223669 is a deficient number, since it is larger than the sum of its proper divisors (666327).

1125223669 is an equidigital number, since it uses as much as digits as its factorization.

1125223669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666326.

The product of its digits is 38880, while the sum is 37.

The square root of 1125223669 is about 33544.3537573762. The cubic root of 1125223669 is about 1040.1108329243.

The spelling of 1125223669 in words is "one billion, one hundred twenty-five million, two hundred twenty-three thousand, six hundred sixty-nine".