1516514149 has 2 divisors, whose sum is σ = 1516514150. Its totient is φ = 1516514148.

The previous prime is 1516514147. The next prime is 1516514159. The reversal of 1516514149 is 9414156151.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1499083524 + 17430625 = 38718^2 + 4175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1516514149 - 2¹ = 1516514147 is a prime.

Together with 1516514147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1516514147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758257074 + 758257075.

It is an arithmetic number, because the mean of its divisors is an integer number (758257075).

Almost surely, 2^1516514149 is an apocalyptic number.

It is an amenable number.

1516514149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516514149 is an equidigital number, since it uses as much as digits as its factorization.

1516514149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 37.

The square root of 1516514149 is about 38942.4466231900. The cubic root of 1516514149 is about 1148.8998044985.

The spelling of 1516514149 in words is "one billion, five hundred sixteen million, five hundred fourteen thousand, one hundred forty-nine".