1225633793 has 4 divisors (see below), whose sum is σ = 1225926228. Its totient is φ = 1225341360.

The previous prime is 1225633789. The next prime is 1225633807. The reversal of 1225633793 is 3973365221.

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 687068944 + 538564849 = 26212^2 + 23207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225633793 - 2² = 1225633789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225633793.

It is not an unprimeable number, because it can be changed into a prime (1225633733) 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, 139838 + ... + 148343.

It is an arithmetic number, because the mean of its divisors is an integer number (306481557).

Almost surely, 2^1225633793 is an apocalyptic number.

It is an amenable number.

1225633793 is a deficient number, since it is larger than the sum of its proper divisors (292435).

1225633793 is an equidigital number, since it uses as much as digits as its factorization.

1225633793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292434.

The product of its digits is 204120, while the sum is 41.

The square root of 1225633793 is about 35009.0530148989. The cubic root of 1225633793 is about 1070.1719795187.

The spelling of 1225633793 in words is "one billion, two hundred twenty-five million, six hundred thirty-three thousand, seven hundred ninety-three".