1146855 has 16 divisors (see below), whose sum is σ = 1855584. Its totient is φ = 604800.

The previous prime is 1146841. The next prime is 1146857. The reversal of 1146855 is 5586411.

1146855 is a nontrivial binomial coefficient, being equal to C(1515, 2).

It is not a de Polignac number, because 1146855 - 2⁵ = 1146823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137 + ... + 1893.

It is an arithmetic number, because the mean of its divisors is an integer number (115974).

2^1146855 is an apocalyptic number.

1146855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1146855 is the 1514-th triangular number.

1146855 is a deficient number, since it is larger than the sum of its proper divisors (708729).

1146855 is a wasteful number, since it uses less digits than its factorization.

1146855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its digits is 4800, while the sum is 30.

The square root of 1146855 is about 1070.9131617456. The cubic root of 1146855 is about 104.6733613489.

The spelling of 1146855 in words is "one million, one hundred forty-six thousand, eight hundred fifty-five".