1601089 has 8 divisors (see below), whose sum is σ = 1845248. Its totient is φ = 1360800.

The previous prime is 1601071. The next prime is 1601107. The reversal of 1601089 is 9801061.

1601089 = T₉₁ + T₉₂ + ... + T₂₁₇.

It is an interprime number because it is at equal distance from previous prime (1601071) and next prime (1601107).

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

It is a de Polignac number, because none of the positive numbers 2^k-1601089 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (230656).

2^1601089 is an apocalyptic number.

It is an amenable number.

1601089 is a deficient number, since it is larger than the sum of its proper divisors (244159).

1601089 is a wasteful number, since it uses less digits than its factorization.

1601089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1601089 is about 1265.3414558924. The cubic root of 1601089 is about 116.9872389715.

The spelling of 1601089 in words is "one million, six hundred one thousand, eighty-nine".