1601071 has 2 divisors, whose sum is σ = 1601072. Its totient is φ = 1601070.

The previous prime is 1601059. The next prime is 1601107. The reversal of 1601071 is 1701061.

Together with next prime (1601107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (1701061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1601071 - 2¹¹ = 1599023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800535 + 800536.

It is an arithmetic number, because the mean of its divisors is an integer number (800536).

2^1601071 is an apocalyptic number.

1601071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601071 is an equidigital number, since it uses as much as digits as its factorization.

1601071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 1601071 is about 1265.3343431678. The cubic root of 1601071 is about 116.9868005661.

The spelling of 1601071 in words is "one million, six hundred one thousand, seventy-one".