1601361 has 6 divisors (see below), whose sum is σ = 2313090. Its totient is φ = 1067568.

The previous prime is 1601359. The next prime is 1601371. The reversal of 1601361 is 1631061.

1601361 is a `hidden beast` number, since 1 + 601 + 3 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 197136 = 1185^2 + 444^2 .

It is not a de Polignac number, because 1601361 - 2¹ = 1601359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1601371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88956 + ... + 88973.

It is an arithmetic number, because the mean of its divisors is an integer number (385515).

2^1601361 is an apocalyptic number.

It is an amenable number.

1601361 is a deficient number, since it is larger than the sum of its proper divisors (711729).

1601361 is a wasteful number, since it uses less digits than its factorization.

1601361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177935 (or 177932 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1601361 is about 1265.4489321976. The cubic root of 1601361 is about 116.9938633643.

It can be divided in two parts, 160 and 1361, that added together give a square (1521 = 39²).

The spelling of 1601361 in words is "one million, six hundred one thousand, three hundred sixty-one".