1520300137 has 2 divisors, whose sum is σ = 1520300138. Its totient is φ = 1520300136.

The previous prime is 1520300113. The next prime is 1520300153. The reversal of 1520300137 is 7310030251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 924403216 + 595896921 = 30404^2 + 24411^2 .

It is an emirp because it is prime and its reverse (7310030251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1520300137 - 2⁷ = 1520300009 is a prime.

It is a super-2 number, since 2×1520300137² = 4622625013124437538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1520300737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760150068 + 760150069.

It is an arithmetic number, because the mean of its divisors is an integer number (760150069).

Almost surely, 2^1520300137 is an apocalyptic number.

It is an amenable number.

1520300137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520300137 is an equidigital number, since it uses as much as digits as its factorization.

1520300137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 1520300137 is about 38991.0263650497. The cubic root of 1520300137 is about 1149.8550887349.

Adding to 1520300137 its reverse (7310030251), we get a palindrome (8830330388).

The spelling of 1520300137 in words is "one billion, five hundred twenty million, three hundred thousand, one hundred thirty-seven".