1606751 has 2 divisors, whose sum is σ = 1606752. Its totient is φ = 1606750.

The previous prime is 1606741. The next prime is 1606753. The reversal of 1606751 is 1576061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606751 is a prime.

Together with 1606753, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1606751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803375 + 803376.

It is an arithmetic number, because the mean of its divisors is an integer number (803376).

2^1606751 is an apocalyptic number.

1606751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606751 is an equidigital number, since it uses as much as digits as its factorization.

1606751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1606751 is about 1267.5768221295. The cubic root of 1606751 is about 117.1249790710.

The spelling of 1606751 in words is "one million, six hundred six thousand, seven hundred fifty-one".