1225802923 has 4 divisors (see below), whose sum is σ = 1225931200. Its totient is φ = 1225674648.

The previous prime is 1225802909. The next prime is 1225802957. The reversal of 1225802923 is 3292085221.

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

It is a cyclic number.

It is not a de Polignac number, because 1225802923 - 2⁵ = 1225802891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225802623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48540 + ... + 69337.

It is an arithmetic number, because the mean of its divisors is an integer number (306482800).

Almost surely, 2^1225802923 is an apocalyptic number.

1225802923 is a deficient number, since it is larger than the sum of its proper divisors (128277).

1225802923 is a wasteful number, since it uses less digits than its factorization.

1225802923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128276.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1225802923 is about 35011.4684496380. The cubic root of 1225802923 is about 1070.2212029934.

The spelling of 1225802923 in words is "one billion, two hundred twenty-five million, eight hundred two thousand, nine hundred twenty-three".