1606231 has 4 divisors (see below), whose sum is σ = 1752264. Its totient is φ = 1460200.

The previous prime is 1606201. The next prime is 1606237. The reversal of 1606231 is 1326061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1326061 = 11 ⋅120551.

It is a cyclic number.

It is not a de Polignac number, because 1606231 - 2⁹ = 1605719 is a prime.

It is a super-2 number, since 2×1606231² = 5159956050722, which contains 22 as substring.

It is a Duffinian number.

1606231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1606199 and 1606208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606237) 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, 73000 + ... + 73021.

It is an arithmetic number, because the mean of its divisors is an integer number (438066).

2^1606231 is an apocalyptic number.

1606231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1606231 is a deficient number, since it is larger than the sum of its proper divisors (146033).

1606231 is a wasteful number, since it uses less digits than its factorization.

1606231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146032.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1606231 is about 1267.3716897580. The cubic root of 1606231 is about 117.1123424811.

The spelling of 1606231 in words is "one million, six hundred six thousand, two hundred thirty-one".