1150945 has 4 divisors (see below), whose sum is σ = 1381140. Its totient is φ = 920752.

The previous prime is 1150939. The next prime is 1150949. The reversal of 1150945 is 5490511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 678976 + 471969 = 824^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150945 - 2¹⁷ = 1019873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1150949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115090 + ... + 115099.

It is an arithmetic number, because the mean of its divisors is an integer number (345285).

2^1150945 is an apocalyptic number.

It is an amenable number.

1150945 is a deficient number, since it is larger than the sum of its proper divisors (230195).

1150945 is an equidigital number, since it uses as much as digits as its factorization.

1150945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230194.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1150945 is about 1072.8210475191. The cubic root of 1150945 is about 104.7976450435.

The spelling of 1150945 in words is "one million, one hundred fifty thousand, nine hundred forty-five".