1330155 has 32 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 693216.

The previous prime is 1330129. The next prime is 1330157. The reversal of 1330155 is 5510331.

It is a happy number.

It is not a de Polignac number, because 1330155 - 2⁸ = 1329899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1330157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7882 + ... + 8048.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1330155 is an apocalyptic number.

1330155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1330155 is a deficient number, since it is larger than the sum of its proper divisors (1089045).

1330155 is a wasteful number, since it uses less digits than its factorization.

1330155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 1330155 is about 1153.3234585319. The cubic root of 1330155 is about 109.9767168352.

Adding to 1330155 its reverse (5510331), we get a palindrome (6840486).

It can be divided in two parts, 1330 and 155, that added together give a triangular number (1485 = T₅₄).

The spelling of 1330155 in words is "one million, three hundred thirty thousand, one hundred fifty-five".