1353987218 has 4 divisors (see below), whose sum is σ = 2030980830. Its totient is φ = 676993608.

The previous prime is 1353987203. The next prime is 1353987223. The reversal of 1353987218 is 8127893531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8127893531 = 35279 ⋅230389.

It can be written as a sum of positive squares in only one way, i.e., 1237843489 + 116143729 = 35183^2 + 10777^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338496803 + ... + 338496806.

Almost surely, 2^1353987218 is an apocalyptic number.

1353987218 is a deficient number, since it is larger than the sum of its proper divisors (676993612).

1353987218 is an equidigital number, since it uses as much as digits as its factorization.

1353987218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676993611.

The product of its digits is 362880, while the sum is 47.

The square root of 1353987218 is about 36796.5653016691. The cubic root of 1353987218 is about 1106.2964569295.

The spelling of 1353987218 in words is "one billion, three hundred fifty-three million, nine hundred eighty-seven thousand, two hundred eighteen".