1606413043 has 4 divisors (see below), whose sum is σ = 1606660240. Its totient is φ = 1606165848.

The previous prime is 1606413013. The next prime is 1606413157. The reversal of 1606413043 is 3403146061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606413043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606413013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113580 + ... + 126937.

It is an arithmetic number, because the mean of its divisors is an integer number (401665060).

Almost surely, 2^1606413043 is an apocalyptic number.

1606413043 is a deficient number, since it is larger than the sum of its proper divisors (247197).

1606413043 is an equidigital number, since it uses as much as digits as its factorization.

1606413043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247196.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1606413043 is about 40080.0828716708. The cubic root of 1606413043 is about 1171.1676664272.

The spelling of 1606413043 in words is "one billion, six hundred six million, four hundred thirteen thousand, forty-three".