1025605349 has 2 divisors, whose sum is σ = 1025605350. Its totient is φ = 1025605348.

The previous prime is 1025605337. The next prime is 1025605363. The reversal of 1025605349 is 9435065201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 895804900 + 129800449 = 29930^2 + 11393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025605349 - 2¹² = 1025601253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025605309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512802674 + 512802675.

It is an arithmetic number, because the mean of its divisors is an integer number (512802675).

Almost surely, 2^1025605349 is an apocalyptic number.

It is an amenable number.

1025605349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025605349 is an equidigital number, since it uses as much as digits as its factorization.

1025605349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1025605349 is about 32025.0737547941. The cubic root of 1025605349 is about 1008.4632870386.

The spelling of 1025605349 in words is "one billion, twenty-five million, six hundred five thousand, three hundred forty-nine".