1516323481 has 12 divisors (see below), whose sum is σ = 1626871120. Its totient is φ = 1409363280.

The previous prime is 1516323463. The next prime is 1516323509. The reversal of 1516323481 is 1843236151.

It is not a de Polignac number, because 1516323481 - 2¹⁹ = 1515799193 is a prime.

It is a super-2 number, since 2×1516323481² = 4598473798063914722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516323401) 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 in 11 ways as a sum of consecutive naturals, for example, 39166 + ... + 67576.

Almost surely, 2^1516323481 is an apocalyptic number.

It is an amenable number.

1516323481 is a deficient number, since it is larger than the sum of its proper divisors (110547639).

1516323481 is an equidigital number, since it uses as much as digits as its factorization.

1516323481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28536 (or 28483 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 1516323481 is about 38939.9984720082. The cubic root of 1516323481 is about 1148.8516529290.

The spelling of 1516323481 in words is "one billion, five hundred sixteen million, three hundred twenty-three thousand, four hundred eighty-one".