1155450 has 24 divisors (see below), whose sum is σ = 2865888. Its totient is φ = 308080.

The previous prime is 1155449. The next prime is 1155457. The reversal of 1155450 is 545511.

1155450 is nontrivially palindromic in base 14.

It is a Curzon number.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1155457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3702 + ... + 4001.

It is an arithmetic number, because the mean of its divisors is an integer number (119412).

2^1155450 is an apocalyptic number.

1155450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155450 is an abundant number, since it is smaller than the sum of its proper divisors (1710438).

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

1155450 is a wasteful number, since it uses less digits than its factorization.

1155450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718 (or 7713 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1155450 is about 1074.9186015694. The cubic root of 1155450 is about 104.9341991357.

It can be divided in two parts, 115 and 5450, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 1155450 in words is "one million, one hundred fifty-five thousand, four hundred fifty".