1325189465 has 4 divisors (see below), whose sum is σ = 1590227364. Its totient is φ = 1060151568.

The previous prime is 1325189431. The next prime is 1325189473. The reversal of 1325189465 is 5649815231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5649815231 = 4733 ⋅1193707.

It can be written as a sum of positive squares in 2 ways, for example, as 508773136 + 816416329 = 22556^2 + 28573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325189465 - 2¹² = 1325185369 is a prime.

It is a super-2 number, since 2×1325189465² = 3512254236293972450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132518942 + ... + 132518951.

It is an arithmetic number, because the mean of its divisors is an integer number (397556841).

Almost surely, 2^1325189465 is an apocalyptic number.

It is an amenable number.

1325189465 is a deficient number, since it is larger than the sum of its proper divisors (265037899).

1325189465 is an equidigital number, since it uses as much as digits as its factorization.

1325189465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265037898.

The product of its digits is 259200, while the sum is 44.

The square root of 1325189465 is about 36403.1518552996. The cubic root of 1325189465 is about 1098.3969666824.

The spelling of 1325189465 in words is "one billion, three hundred twenty-five million, one hundred eighty-nine thousand, four hundred sixty-five".