1161522 has 24 divisors (see below), whose sum is σ = 2537964. Its totient is φ = 383904.

The previous prime is 1161521. The next prime is 1161529. The reversal of 1161522 is 2251611.

It can be written as a sum of positive squares in 2 ways, for example, as 1083681 + 77841 = 1041^2 + 279^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1161495 and 1161504.

It is not an unprimeable number, because it can be changed into a prime (1161521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2928 + ... + 3300.

2^1161522 is an apocalyptic number.

1161522 is an abundant number, since it is smaller than the sum of its proper divisors (1376442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161522 is a wasteful number, since it uses less digits than its factorization.

1161522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 551 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 1161522 is about 1077.7393005732. The cubic root of 1161522 is about 105.1176911637.

The spelling of 1161522 in words is "one million, one hundred sixty-one thousand, five hundred twenty-two".