1155030 has 16 divisors (see below), whose sum is σ = 2772144. Its totient is φ = 308000.

The previous prime is 1155019. The next prime is 1155053. The reversal of 1155030 is 305511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19221 + ... + 19280.

It is an arithmetic number, because the mean of its divisors is an integer number (173259).

2^1155030 is an apocalyptic number.

1155030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155030 is an abundant number, since it is smaller than the sum of its proper divisors (1617114).

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

1155030 is a wasteful number, since it uses less digits than its factorization.

1155030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38511.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 1155030 is about 1074.7232201828. The cubic root of 1155030 is about 104.9214832516.

The spelling of 1155030 in words is "one million, one hundred fifty-five thousand, thirty".