1146138 has 32 divisors (see below), whose sum is σ = 2712960. Its totient is φ = 315840.

The previous prime is 1146133. The next prime is 1146143. The reversal of 1146138 is 8316411.

It is an interprime number because it is at equal distance from previous prime (1146133) and next prime (1146143).

It is not an unprimeable number, because it can be changed into a prime (1146133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (84780).

2^1146138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1146138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356480).

1146138 is an abundant number, since it is smaller than the sum of its proper divisors (1566822).

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

1146138 is a wasteful number, since it uses less digits than its factorization.

1146138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its digits is 576, while the sum is 24.

The square root of 1146138 is about 1070.5783483706. The cubic root of 1146138 is about 104.6515432912.

The spelling of 1146138 in words is "one million, one hundred forty-six thousand, one hundred thirty-eight".