1225231343 has 8 divisors (see below), whose sum is σ = 1419446688. Its totient is φ = 1035811584.

The previous prime is 1225231339. The next prime is 1225231351. The reversal of 1225231343 is 3431325221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225231343 - 2² = 1225231339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225231313) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1198346 + ... + 1199367.

It is an arithmetic number, because the mean of its divisors is an integer number (177430836).

Almost surely, 2^1225231343 is an apocalyptic number.

1225231343 is a deficient number, since it is larger than the sum of its proper divisors (194215345).

1225231343 is an equidigital number, since it uses as much as digits as its factorization.

1225231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397793.

The product of its digits is 4320, while the sum is 26.

The square root of 1225231343 is about 35003.3047439810. The cubic root of 1225231343 is about 1070.0548325468.

Adding to 1225231343 its reverse (3431325221), we get a palindrome (4656556564).

The spelling of 1225231343 in words is "one billion, two hundred twenty-five million, two hundred thirty-one thousand, three hundred forty-three".