1355118986 has 16 divisors (see below), whose sum is σ = 2190399624. Its totient is φ = 625050624.

The previous prime is 1355118979. The next prime is 1355118997. The reversal of 1355118986 is 6898115531.

It can be written as a sum of positive squares in 4 ways, for example, as 1350195025 + 4923961 = 36745^2 + 2219^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1355118986.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28766 + ... + 59478.

Almost surely, 2^1355118986 is an apocalyptic number.

1355118986 is a deficient number, since it is larger than the sum of its proper divisors (835280638).

1355118986 is a wasteful number, since it uses less digits than its factorization.

1355118986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32425.

The product of its digits is 259200, while the sum is 47.

The square root of 1355118986 is about 36811.9408072978. The cubic root of 1355118986 is about 1106.6046140067.

The spelling of 1355118986 in words is "one billion, three hundred fifty-five million, one hundred eighteen thousand, nine hundred eighty-six".