1325738291 has 2 divisors, whose sum is σ = 1325738292. Its totient is φ = 1325738290.

The previous prime is 1325738287. The next prime is 1325738303. The reversal of 1325738291 is 1928375231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1325738291 - 2² = 1325738287 is a prime.

It is not a weakly prime, because it can be changed into another prime (1325731291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662869145 + 662869146.

It is an arithmetic number, because the mean of its divisors is an integer number (662869146).

Almost surely, 2^1325738291 is an apocalyptic number.

1325738291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325738291 is an equidigital number, since it uses as much as digits as its factorization.

1325738291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 1325738291 is about 36410.6892409358. The cubic root of 1325738291 is about 1098.5485791193.

The spelling of 1325738291 in words is "one billion, three hundred twenty-five million, seven hundred thirty-eight thousand, two hundred ninety-one".