1155306 has 16 divisors (see below), whose sum is σ = 2326464. Its totient is φ = 382464.

The previous prime is 1155293. The next prime is 1155311. The reversal of 1155306 is 6035511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426 + ... + 1578.

It is an arithmetic number, because the mean of its divisors is an integer number (145404).

2^1155306 is an apocalyptic number.

1155306 is an abundant number, since it is smaller than the sum of its proper divisors (1171158).

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

1155306 is a wasteful number, since it uses less digits than its factorization.

1155306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1155306 is about 1074.8516176664. The cubic root of 1155306 is about 104.9298397512.

The spelling of 1155306 in words is "one million, one hundred fifty-five thousand, three hundred six".