1325664031 has 2 divisors, whose sum is σ = 1325664032. Its totient is φ = 1325664030.

The previous prime is 1325664019. The next prime is 1325664049. The reversal of 1325664031 is 1304665231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325664031 is a prime.

It is a super-2 number, since 2×1325664031² = 3514770246174337922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1325663984 and 1325664002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325664061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662832015 + 662832016.

It is an arithmetic number, because the mean of its divisors is an integer number (662832016).

Almost surely, 2^1325664031 is an apocalyptic number.

1325664031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325664031 is an equidigital number, since it uses as much as digits as its factorization.

1325664031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1325664031 is about 36409.6694711721. The cubic root of 1325664031 is about 1098.5280673433.

The spelling of 1325664031 in words is "one billion, three hundred twenty-five million, six hundred sixty-four thousand, thirty-one".