1345384186 has 12 divisors (see below), whose sum is σ = 2129882202. Its totient is φ = 637286904.

The previous prime is 1345384177. The next prime is 1345384189. The reversal of 1345384186 is 6814835431.

It can be written as a sum of positive squares in only one way, i.e., 1234187161 + 111197025 = 35131^2 + 10545^2 .

It is not an unprimeable number, because it can be changed into a prime (1345384189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 930985 + ... + 932428.

Almost surely, 2^1345384186 is an apocalyptic number.

1345384186 is a deficient number, since it is larger than the sum of its proper divisors (784498016).

1345384186 is a wasteful number, since it uses less digits than its factorization.

1345384186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863453 (or 1863434 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 1345384186 is about 36679.4790857231. The cubic root of 1345384186 is about 1103.9483961430.

The spelling of 1345384186 in words is "one billion, three hundred forty-five million, three hundred eighty-four thousand, one hundred eighty-six".