1601135 has 8 divisors (see below), whose sum is σ = 1940640. Its totient is φ = 1268064.

The previous prime is 1601123. The next prime is 1601137. The reversal of 1601135 is 5311061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1601135 - 2⁶ = 1601071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601137) 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 7 ways as a sum of consecutive naturals, for example, 1040 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (242580).

2^1601135 is an apocalyptic number.

1601135 is a deficient number, since it is larger than the sum of its proper divisors (339505).

1601135 is a wasteful number, since it uses less digits than its factorization.

1601135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1601135 is about 1265.3596326737. The cubic root of 1601135 is about 116.9883593260.

Adding to 1601135 its reverse (5311061), we get a palindrome (6912196).

The spelling of 1601135 in words is "one million, six hundred one thousand, one hundred thirty-five".