1601105 has 16 divisors (see below), whose sum is σ = 2147904. Its totient is φ = 1135680.

The previous prime is 1601071. The next prime is 1601107. The reversal of 1601105 is 5011061.

1601105 = 41² + 42² + ... + 169².

It is not a de Polignac number, because 1601105 - 2¹⁴ = 1584721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1601105.

It is not an unprimeable number, because it can be changed into a prime (1601107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2027 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (134244).

2^1601105 is an apocalyptic number.

It is an amenable number.

1601105 is a deficient number, since it is larger than the sum of its proper divisors (546799).

1601105 is a wasteful number, since it uses less digits than its factorization.

1601105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1601105 is about 1265.3477782807. The cubic root of 1601105 is about 116.9876286625.

Adding to 1601105 its reverse (5011061), we get a palindrome (6612166).

It can be divided in two parts, 1 and 601105, that added together give a palindrome (601106).

The spelling of 1601105 in words is "one million, six hundred one thousand, one hundred five".