988155 has 24 divisors (see below), whose sum is σ = 1958112. Its totient is φ = 451584.

The previous prime is 988147. The next prime is 988157. The reversal of 988155 is 551889.

It is not a de Polignac number, because 988155 - 2³ = 988147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1254 + ... + 1883.

It is an arithmetic number, because the mean of its divisors is an integer number (81588).

2⁹⁸⁸¹⁵⁵ is an apocalyptic number.

988155 is a deficient number, since it is larger than the sum of its proper divisors (969957).

988155 is a wasteful number, since it uses less digits than its factorization.

988155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3152 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 988155 is about 994.0598573527. The cubic root of 988155 is about 99.6035973927.

The spelling of 988155 in words is "nine hundred eighty-eight thousand, one hundred fifty-five".