1325688451 has 4 divisors (see below), whose sum is σ = 1332418032. Its totient is φ = 1318958872.

The previous prime is 1325688401. The next prime is 1325688461. The reversal of 1325688451 is 1548865231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1548865231 = 79 ⋅19605889.

It is a cyclic number.

It is not a de Polignac number, because 1325688451 - 2⁹ = 1325687939 is a prime.

It is a super-2 number, since 2×1325688451² = 3514899738229558802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325688398 and 1325688407.

It is not an unprimeable number, because it can be changed into a prime (1325688401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3364495 + ... + 3364888.

It is an arithmetic number, because the mean of its divisors is an integer number (333104508).

Almost surely, 2^1325688451 is an apocalyptic number.

1325688451 is a deficient number, since it is larger than the sum of its proper divisors (6729581).

1325688451 is an equidigital number, since it uses as much as digits as its factorization.

1325688451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729580.

The product of its digits is 230400, while the sum is 43.

The square root of 1325688451 is about 36410.0048201040. The cubic root of 1325688451 is about 1098.5348126146.

The spelling of 1325688451 in words is "one billion, three hundred twenty-five million, six hundred eighty-eight thousand, four hundred fifty-one".