1161325 has 24 divisors (see below), whose sum is σ = 1624896. Its totient is φ = 816000.

The previous prime is 1161317. The next prime is 1161331. The reversal of 1161325 is 5231611.

1161325 = T₄₅₄ + T₄₅₅ + ... + T₄₆₄.

It is not a de Polignac number, because 1161325 - 2³ = 1161317 is a prime.

It is a Duffinian number.

1161325 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11224 + ... + 11326.

It is an arithmetic number, because the mean of its divisors is an integer number (67704).

2^1161325 is an apocalyptic number.

It is an amenable number.

1161325 is a deficient number, since it is larger than the sum of its proper divisors (463571).

1161325 is a wasteful number, since it uses less digits than its factorization.

1161325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 160 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 1161325 is about 1077.6479016822. The cubic root of 1161325 is about 105.1117479972. Note that the first 3 decimals are identical.

Adding to 1161325 its reverse (5231611), we get a palindrome (6392936).

It can be divided in two parts, 116 and 1325, that added together give a palindrome (1441).

The spelling of 1161325 in words is "one million, one hundred sixty-one thousand, three hundred twenty-five".