1155078 has 12 divisors (see below), whose sum is σ = 2502708. Its totient is φ = 385020.

The previous prime is 1155071. The next prime is 1155097. The reversal of 1155078 is 8705511.

It is a super-3 number, since 3×1155078³ = 4623333173794603656, which contains 333 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32068 + ... + 32103.

It is an arithmetic number, because the mean of its divisors is an integer number (208559).

2^1155078 is an apocalyptic number.

1155078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1155078 is an abundant number, since it is smaller than the sum of its proper divisors (1347630).

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

1155078 is a wasteful number, since it uses less digits than its factorization.

1155078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64179 (or 64176 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 1155078 is about 1074.7455512818. The cubic root of 1155078 is about 104.9229366515.

It can be divided in two parts, 11550 and 78, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 1155078 in words is "one million, one hundred fifty-five thousand, seventy-eight".