1325414257 has 4 divisors (see below), whose sum is σ = 1357741476. Its totient is φ = 1293087040.

The previous prime is 1325414249. The next prime is 1325414281. The reversal of 1325414257 is 7524145231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7524145231 = 149 ⋅50497619.

It can be written as a sum of positive squares in 2 ways, for example, as 776402496 + 549011761 = 27864^2 + 23431^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325414257 - 2³ = 1325414249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325414957) 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, 16163548 + ... + 16163629.

It is an arithmetic number, because the mean of its divisors is an integer number (339435369).

Almost surely, 2^1325414257 is an apocalyptic number.

It is an amenable number.

1325414257 is a deficient number, since it is larger than the sum of its proper divisors (32327219).

1325414257 is an equidigital number, since it uses as much as digits as its factorization.

1325414257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32327218.

The product of its digits is 33600, while the sum is 34.

The square root of 1325414257 is about 36406.2392592259. The cubic root of 1325414257 is about 1098.4590702275.

Adding to 1325414257 its reverse (7524145231), we get a palindrome (8849559488).

The spelling of 1325414257 in words is "one billion, three hundred twenty-five million, four hundred fourteen thousand, two hundred fifty-seven".