1516321153 has 4 divisors (see below), whose sum is σ = 1538952880. Its totient is φ = 1493689428.

The previous prime is 1516321141. The next prime is 1516321187. The reversal of 1516321153 is 3511236151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3511236151 = 17 ⋅206543303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1516321153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516321133) 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 3 ways as a sum of consecutive naturals, for example, 11315763 + ... + 11315896.

It is an arithmetic number, because the mean of its divisors is an integer number (384738220).

Almost surely, 2^1516321153 is an apocalyptic number.

It is an amenable number.

1516321153 is a deficient number, since it is larger than the sum of its proper divisors (22631727).

1516321153 is an equidigital number, since it uses as much as digits as its factorization.

1516321153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22631726.

The product of its digits is 2700, while the sum is 28.

The square root of 1516321153 is about 38939.9685798538. The cubic root of 1516321153 is about 1148.8510649876.

The spelling of 1516321153 in words is "one billion, five hundred sixteen million, three hundred twenty-one thousand, one hundred fifty-three".