1223125235 has 4 divisors (see below), whose sum is σ = 1467750288. Its totient is φ = 978500184.

The previous prime is 1223125223. The next prime is 1223125289. The reversal of 1223125235 is 5325213221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5325213221 = 11243 ⋅473647.

It is a cyclic number.

It is not a de Polignac number, because 1223125235 - 2⁴ = 1223125219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122312519 + ... + 122312528.

It is an arithmetic number, because the mean of its divisors is an integer number (366937572).

Almost surely, 2^1223125235 is an apocalyptic number.

1223125235 is a deficient number, since it is larger than the sum of its proper divisors (244625053).

1223125235 is an equidigital number, since it uses as much as digits as its factorization.

1223125235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244625052.

The product of its digits is 3600, while the sum is 26.

The square root of 1223125235 is about 34973.2073879420. The cubic root of 1223125235 is about 1069.4413583125.

Adding to 1223125235 its reverse (5325213221), we get a palindrome (6548338456).

The spelling of 1223125235 in words is "one billion, two hundred twenty-three million, one hundred twenty-five thousand, two hundred thirty-five".