1325222157 has 16 divisors (see below), whose sum is σ = 2020240512. Its totient is φ = 756949440.

The previous prime is 1325222149. The next prime is 1325222159. The reversal of 1325222157 is 7512225231.

It is not a de Polignac number, because 1325222157 - 2³ = 1325222149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325222159) 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 15 ways as a sum of consecutive naturals, for example, 43003 + ... + 67079.

It is an arithmetic number, because the mean of its divisors is an integer number (126265032).

Almost surely, 2^1325222157 is an apocalyptic number.

It is an amenable number.

1325222157 is a deficient number, since it is larger than the sum of its proper divisors (695018355).

1325222157 is a wasteful number, since it uses less digits than its factorization.

1325222157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26708.

The product of its digits is 8400, while the sum is 30.

The square root of 1325222157 is about 36403.6008795833. The cubic root of 1325222157 is about 1098.4059989754.

Adding to 1325222157 its reverse (7512225231), we get a palindrome (8837447388).

The spelling of 1325222157 in words is "one billion, three hundred twenty-five million, two hundred twenty-two thousand, one hundred fifty-seven".