1525035397 has 2 divisors, whose sum is σ = 1525035398. Its totient is φ = 1525035396.

The previous prime is 1525035389. The next prime is 1525035487. The reversal of 1525035397 is 7935305251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 924099201 + 600936196 = 30399^2 + 24514^2 .

It is an emirp because it is prime and its reverse (7935305251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1525035397 - 2³ = 1525035389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525035497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762517698 + 762517699.

It is an arithmetic number, because the mean of its divisors is an integer number (762517699).

Almost surely, 2^1525035397 is an apocalyptic number.

It is an amenable number.

1525035397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525035397 is an equidigital number, since it uses as much as digits as its factorization.

1525035397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 1525035397 is about 39051.7015890473. The cubic root of 1525035397 is about 1151.0476645562.

The spelling of 1525035397 in words is "one billion, five hundred twenty-five million, thirty-five thousand, three hundred ninety-seven".