1150020 has 36 divisors (see below), whose sum is σ = 3488940. Its totient is φ = 306624.

The previous prime is 1149991. The next prime is 1150027. The reversal of 1150020 is 200511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133956 + 1016064 = 366^2 + 1008^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1149984 and 1150011.

It is not an unprimeable number, because it can be changed into a prime (1150027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3015 + ... + 3374.

It is an arithmetic number, because the mean of its divisors is an integer number (96915).

2^1150020 is an apocalyptic number.

1150020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150020 is an abundant number, since it is smaller than the sum of its proper divisors (2338920).

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

1150020 is a wasteful number, since it uses less digits than its factorization.

1150020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404 (or 6399 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 1150020 is about 1072.3898544839. The cubic root of 1150020 is about 104.7695626699.

Adding to 1150020 its reverse (200511), we get a palindrome (1350531).

The spelling of 1150020 in words is "one million, one hundred fifty thousand, twenty".