1137855 has 16 divisors (see below), whose sum is σ = 1880064. Its totient is φ = 587040.

The previous prime is 1137817. The next prime is 1137859. The reversal of 1137855 is 5587311.

It is not a de Polignac number, because 1137855 - 2¹⁰ = 1136831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137859) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 759 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (117504).

2^1137855 is an apocalyptic number.

1137855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1137855 is a deficient number, since it is larger than the sum of its proper divisors (742209).

1137855 is a wasteful number, since it uses less digits than its factorization.

1137855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486.

The product of its digits is 4200, while the sum is 30.

The square root of 1137855 is about 1066.7028639692. The cubic root of 1137855 is about 104.3988322119.

The spelling of 1137855 in words is "one million, one hundred thirty-seven thousand, eight hundred fifty-five".