1518345137 has 2 divisors, whose sum is σ = 1518345138. Its totient is φ = 1518345136.

The previous prime is 1518345121. The next prime is 1518345167. The reversal of 1518345137 is 7315438151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102837681 + 415507456 = 33209^2 + 20384^2 .

It is a cyclic number.

It is not a de Polignac number, because 1518345137 - 2⁴ = 1518345121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1518345137.

It is not a weakly prime, because it can be changed into another prime (1518345167) 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, 759172568 + 759172569.

It is an arithmetic number, because the mean of its divisors is an integer number (759172569).

Almost surely, 2^1518345137 is an apocalyptic number.

It is an amenable number.

1518345137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1518345137 is an equidigital number, since it uses as much as digits as its factorization.

1518345137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 1518345137 is about 38965.9484293659. The cubic root of 1518345137 is about 1149.3619994847.

The spelling of 1518345137 in words is "one billion, five hundred eighteen million, three hundred forty-five thousand, one hundred thirty-seven".