1325222156 has 24 divisors (see below), whose sum is σ = 2376837120. Its totient is φ = 646328592.

The previous prime is 1325222149. The next prime is 1325222159. The reversal of 1325222156 is 6512225231.

It is not an unprimeable number, because it can be changed into a prime (1325222159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965 + ... + 51491.

It is an arithmetic number, because the mean of its divisors is an integer number (99034880).

Almost surely, 2^1325222156 is an apocalyptic number.

It is an amenable number.

1325222156 is a deficient number, since it is larger than the sum of its proper divisors (1051614964).

1325222156 is a wasteful number, since it uses less digits than its factorization.

1325222156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50693 (or 50691 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 1325222156 is about 36403.6008658484. The cubic root of 1325222156 is about 1098.4059986991.

Adding to 1325222156 its reverse (6512225231), we get a palindrome (7837447387).

The spelling of 1325222156 in words is "one billion, three hundred twenty-five million, two hundred twenty-two thousand, one hundred fifty-six".