1161601 has 16 divisors (see below), whose sum is σ = 1410048. Its totient is φ = 936000.

The previous prime is 1161599. The next prime is 1161617. The reversal of 1161601 is 1061611.

It is a cyclic number.

It is not a de Polignac number, because 1161601 - 2¹ = 1161599 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1161691) 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, 11451 + ... + 11551.

It is an arithmetic number, because the mean of its divisors is an integer number (88128).

2^1161601 is an apocalyptic number.

It is an amenable number.

1161601 is a deficient number, since it is larger than the sum of its proper divisors (248447).

1161601 is a wasteful number, since it uses less digits than its factorization.

1161601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1161601 is about 1077.7759507430. The cubic root of 1161601 is about 105.1200742752.

The spelling of 1161601 in words is "one million, one hundred sixty-one thousand, six hundred one".