1618936101 has 6 divisors (see below), whose sum is σ = 2338463270. Its totient is φ = 1079290728.

The previous prime is 1618936087. The next prime is 1618936133. The reversal of 1618936101 is 1016398161.

It is a happy number.

1618936101 is a `hidden beast` number, since 1 + 618 + 9 + 36 + 1 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1024064001 + 594872100 = 32001^2 + 24390^2 .

It is not a de Polignac number, because 1618936101 - 2⁷ = 1618935973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618936141) 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 5 ways as a sum of consecutive naturals, for example, 89940886 + ... + 89940903.

Almost surely, 2^1618936101 is an apocalyptic number.

It is an amenable number.

1618936101 is a deficient number, since it is larger than the sum of its proper divisors (719527169).

1618936101 is a wasteful number, since it uses less digits than its factorization.

1618936101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179881795 (or 179881792 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1618936101 is about 40236.0050328061. The cubic root of 1618936101 is about 1174.2031358159.

The spelling of 1618936101 in words is "one billion, six hundred eighteen million, nine hundred thirty-six thousand, one hundred one".