1161544 has 8 divisors (see below), whose sum is σ = 2177910. Its totient is φ = 580768.

The previous prime is 1161529. The next prime is 1161547. The reversal of 1161544 is 4451611.

It can be written as a sum of positive squares in only one way, i.e., 1077444 + 84100 = 1038^2 + 290^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1161547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72589 + ... + 72604.

2^1161544 is an apocalyptic number.

It is an amenable number.

1161544 is a deficient number, since it is larger than the sum of its proper divisors (1016366).

1161544 is a wasteful number, since it uses less digits than its factorization.

1161544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145199 (or 145195 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1161544 is about 1077.7495070748. The cubic root of 1161544 is about 105.1183548258.

The spelling of 1161544 in words is "one million, one hundred sixty-one thousand, five hundred forty-four".