1516675481 has 2 divisors, whose sum is σ = 1516675482. Its totient is φ = 1516675480.

The previous prime is 1516675469. The next prime is 1516675483. The reversal of 1516675481 is 1845766151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1514377225 + 2298256 = 38915^2 + 1516^2 .

It is an emirp because it is prime and its reverse (1845766151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1516675481 is a prime.

It is a super-2 number, since 2×1516675481² = 4600609029333162722, which contains 22 as substring.

Together with 1516675483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1516675483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758337740 + 758337741.

It is an arithmetic number, because the mean of its divisors is an integer number (758337741).

Almost surely, 2^1516675481 is an apocalyptic number.

It is an amenable number.

1516675481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516675481 is an equidigital number, since it uses as much as digits as its factorization.

1516675481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 44.

The square root of 1516675481 is about 38944.5179839217. The cubic root of 1516675481 is about 1148.9405443603.

The spelling of 1516675481 in words is "one billion, five hundred sixteen million, six hundred seventy-five thousand, four hundred eighty-one".