1601011 has 4 divisors (see below), whose sum is σ = 1603800. Its totient is φ = 1598224.

The previous prime is 1600993. The next prime is 1601023. The reversal of 1601011 is 1101061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1101061 = 13 ⋅84697.

It is a cyclic number.

It is not a de Polignac number, because 1601011 - 2¹¹ = 1598963 is a prime.

It is a Duffinian number.

1601011 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1601051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181 + ... + 1798.

It is an arithmetic number, because the mean of its divisors is an integer number (400950).

2^1601011 is an apocalyptic number.

1601011 is a deficient number, since it is larger than the sum of its proper divisors (2789).

1601011 is an equidigital number, since it uses as much as digits as its factorization.

1601011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1601011 is about 1265.3106337971. The cubic root of 1601011 is about 116.9853391911.

Adding to 1601011 its reverse (1101061), we get a palindrome (2702072).

The spelling of 1601011 in words is "one million, six hundred one thousand, eleven".