1520600897 has 2 divisors, whose sum is σ = 1520600898. Its totient is φ = 1520600896.

The previous prime is 1520600881. The next prime is 1520600947. The reversal of 1520600897 is 7980060251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789385216 + 731215681 = 28096^2 + 27041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1520600897 - 2⁴ = 1520600881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1520600897.

It is not a weakly prime, because it can be changed into another prime (1520600857) 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 as a sum of consecutive naturals, namely, 760300448 + 760300449.

It is an arithmetic number, because the mean of its divisors is an integer number (760300449).

Almost surely, 2^1520600897 is an apocalyptic number.

It is an amenable number.

1520600897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520600897 is an equidigital number, since it uses as much as digits as its factorization.

1520600897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1520600897 is about 38994.8829591781. The cubic root of 1520600897 is about 1149.9309087666.

The spelling of 1520600897 in words is "one billion, five hundred twenty million, six hundred thousand, eight hundred ninety-seven".