1225333723 has 4 divisors (see below), whose sum is σ = 1267586640. Its totient is φ = 1183080808.

The previous prime is 1225333709. The next prime is 1225333741. The reversal of 1225333723 is 3273335221.

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 1225333723 - 2¹³ = 1225325531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225333793) 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, 21126415 + ... + 21126472.

It is an arithmetic number, because the mean of its divisors is an integer number (316896660).

Almost surely, 2^1225333723 is an apocalyptic number.

1225333723 is a deficient number, since it is larger than the sum of its proper divisors (42252917).

1225333723 is an equidigital number, since it uses as much as digits as its factorization.

1225333723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42252916.

The product of its digits is 22680, while the sum is 31.

The square root of 1225333723 is about 35004.7671467759. The cubic root of 1225333723 is about 1070.0846362143.

Adding to 1225333723 its reverse (3273335221), we get a palindrome (4498668944).

The spelling of 1225333723 in words is "one billion, two hundred twenty-five million, three hundred thirty-three thousand, seven hundred twenty-three".