1151145 has 16 divisors (see below), whose sum is σ = 2046720. Its totient is φ = 613872.

The previous prime is 1151141. The next prime is 1151147. The reversal of 1151145 is 5411511.

It is a happy number.

It is not a de Polignac number, because 1151145 - 2² = 1151141 is a prime.

It is a super-2 number, since 2×1151145² = 2650269622050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1151141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4129 + ... + 4398.

It is an arithmetic number, because the mean of its divisors is an integer number (127920).

2^1151145 is an apocalyptic number.

1151145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151145 is a deficient number, since it is larger than the sum of its proper divisors (895575).

1151145 is an equidigital number, since it uses as much as digits as its factorization.

1151145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541 (or 8535 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 1151145 is about 1072.9142556607. The cubic root of 1151145 is about 104.8037149296.

Adding to 1151145 its reverse (5411511), we get a palindrome (6562656).

It can be divided in two parts, 1151 and 145, that added together give a 4-th power (1296 = 6⁴).

The spelling of 1151145 in words is "one million, one hundred fifty-one thousand, one hundred forty-five".