1078155 has 48 divisors (see below), whose sum is σ = 2140320. Its totient is φ = 497664.

The previous prime is 1078153. The next prime is 1078159. The reversal of 1078155 is 5518701.

It is not a de Polignac number, because 1078155 - 2¹ = 1078153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11067 + ... + 11163.

It is an arithmetic number, because the mean of its divisors is an integer number (44590).

2^1078155 is an apocalyptic number.

1078155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1078155 is a deficient number, since it is larger than the sum of its proper divisors (1062165).

1078155 is a wasteful number, since it uses less digits than its factorization.

1078155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 137 counting only the distinct ones).

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

The square root of 1078155 is about 1038.3424290666. The cubic root of 1078155 is about 102.5400993215.

The spelling of 1078155 in words is "one million, seventy-eight thousand, one hundred fifty-five".