1518316522 has 4 divisors (see below), whose sum is σ = 2277474786. Its totient is φ = 759158260.

The previous prime is 1518316519. The next prime is 1518316523. The reversal of 1518316522 is 2256138151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1468345761 + 49970761 = 38319^2 + 7069^2 .

It is not an unprimeable number, because it can be changed into a prime (1518316523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 379579129 + ... + 379579132.

Almost surely, 2^1518316522 is an apocalyptic number.

1518316522 is a deficient number, since it is larger than the sum of its proper divisors (759158264).

1518316522 is an equidigital number, since it uses as much as digits as its factorization.

1518316522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759158263.

The product of its digits is 14400, while the sum is 34.

The square root of 1518316522 is about 38965.5812480707. The cubic root of 1518316522 is about 1149.3547790798.

The spelling of 1518316522 in words is "one billion, five hundred eighteen million, three hundred sixteen thousand, five hundred twenty-two".