1606159937 has 2 divisors, whose sum is σ = 1606159938. Its totient is φ = 1606159936.

The previous prime is 1606159909. The next prime is 1606159963. The reversal of 1606159937 is 7399516061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1601280256 + 4879681 = 40016^2 + 2209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606159937 - 2¹⁰ = 1606158913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1606159891 and 1606159900.

It is not a weakly prime, because it can be changed into another prime (1606150937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803079968 + 803079969.

It is an arithmetic number, because the mean of its divisors is an integer number (803079969).

Almost surely, 2^1606159937 is an apocalyptic number.

It is an amenable number.

1606159937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606159937 is an equidigital number, since it uses as much as digits as its factorization.

1606159937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 1606159937 is about 40076.9252438358. The cubic root of 1606159937 is about 1171.1061535773.

The spelling of 1606159937 in words is "one billion, six hundred six million, one hundred fifty-nine thousand, nine hundred thirty-seven".