1145522 has 12 divisors (see below), whose sum is σ = 1998990. Its totient is φ = 490896.

The previous prime is 1145509. The next prime is 1145533. The reversal of 1145522 is 2255411.

It can be written as a sum of positive squares in only one way, i.e., 625681 + 519841 = 791^2 + 721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1145494 and 1145503.

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 5 ways as a sum of consecutive naturals, for example, 5747 + ... + 5942.

2^1145522 is an apocalyptic number.

1145522 is a deficient number, since it is larger than the sum of its proper divisors (853468).

1145522 is a wasteful number, since it uses less digits than its factorization.

1145522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11705 (or 11698 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 1145522 is about 1070.2906147398. The cubic root of 1145522 is about 104.6327913598.

The spelling of 1145522 in words is "one million, one hundred forty-five thousand, five hundred twenty-two".