1225794403 has 4 divisors (see below), whose sum is σ = 1226029000. Its totient is φ = 1225559808.

The previous prime is 1225794389. The next prime is 1225794431. The reversal of 1225794403 is 3044975221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225794403 is a prime.

It is a super-2 number, since 2×1225794403² = 3005143836852252818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225794103) 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, 109278 + ... + 119971.

It is an arithmetic number, because the mean of its divisors is an integer number (306507250).

Almost surely, 2^1225794403 is an apocalyptic number.

1225794403 is a deficient number, since it is larger than the sum of its proper divisors (234597).

1225794403 is an equidigital number, since it uses as much as digits as its factorization.

1225794403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234596.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1225794403 is about 35011.3467750100. The cubic root of 1225794403 is about 1070.2187234470.

The spelling of 1225794403 in words is "one billion, two hundred twenty-five million, seven hundred ninety-four thousand, four hundred three".