1325512151 has 4 divisors (see below), whose sum is σ = 1403483472. Its totient is φ = 1247540832.

The previous prime is 1325512147. The next prime is 1325512159. The reversal of 1325512151 is 1512155231.

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 1325512151 - 2² = 1325512147 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 1325512151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325512159) 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 3 ways as a sum of consecutive naturals, for example, 38985635 + ... + 38985668.

It is an arithmetic number, because the mean of its divisors is an integer number (350870868).

Almost surely, 2^1325512151 is an apocalyptic number.

1325512151 is a deficient number, since it is larger than the sum of its proper divisors (77971321).

1325512151 is an equidigital number, since it uses as much as digits as its factorization.

1325512151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77971320.

The product of its digits is 1500, while the sum is 26.

The square root of 1325512151 is about 36407.5837017509. The cubic root of 1325512151 is about 1098.4861133210.

Adding to 1325512151 its reverse (1512155231), we get a palindrome (2837667382).

The spelling of 1325512151 in words is "one billion, three hundred twenty-five million, five hundred twelve thousand, one hundred fifty-one".