1145111 has 8 divisors (see below), whose sum is σ = 1315200. Its totient is φ = 986040.

The previous prime is 1145107. The next prime is 1145129. The reversal of 1145111 is 1115411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1145111 - 2² = 1145107 is a prime.

It is a super-2 number, since 2×1145111² = 2622558404642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145141) 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 7 ways as a sum of consecutive naturals, for example, 2531 + ... + 2948.

It is an arithmetic number, because the mean of its divisors is an integer number (164400).

2^1145111 is an apocalyptic number.

1145111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1145111 is a deficient number, since it is larger than the sum of its proper divisors (170089).

1145111 is a wasteful number, since it uses less digits than its factorization.

1145111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509.

The product of its digits is 20, while the sum is 14.

The square root of 1145111 is about 1070.0985935885. The cubic root of 1145111 is about 104.6202761859.

It can be divided in two parts, 114 and 5111, that added together give a palindrome (5225).

The spelling of 1145111 in words is "one million, one hundred forty-five thousand, one hundred eleven".