1145055 has 16 divisors (see below), whose sum is σ = 1912320. Its totient is φ = 583968.

The previous prime is 1145021. The next prime is 1145057. The reversal of 1145055 is 5505411.

It is not a de Polignac number, because 1145055 - 2¹² = 1140959 is a prime.

It is a super-2 number, since 2×1145055² = 2622301906050, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315 + ... + 2004.

It is an arithmetic number, because the mean of its divisors is an integer number (119520).

2^1145055 is an apocalyptic number.

1145055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145055 is a deficient number, since it is larger than the sum of its proper divisors (767265).

1145055 is a wasteful number, since it uses less digits than its factorization.

1145055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1145055 is about 1070.0724274553. The cubic root of 1145055 is about 104.6185707235.

The spelling of 1145055 in words is "one million, one hundred forty-five thousand, fifty-five".