1139138 has 32 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 408960.

The previous prime is 1139123. The next prime is 1139141. The reversal of 1139138 is 8319311.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1718 + ... + 2286.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^1139138 is an apocalyptic number.

1139138 is an abundant number, since it is smaller than the sum of its proper divisors (1159102).

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

1139138 is a wasteful number, since it uses less digits than its factorization.

1139138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602.

The product of its digits is 648, while the sum is 26.

The square root of 1139138 is about 1067.3040803820. The cubic root of 1139138 is about 104.4380561289.

The spelling of 1139138 in words is "one million, one hundred thirty-nine thousand, one hundred thirty-eight".