1138258 has 16 divisors (see below), whose sum is σ = 1923840. Its totient is φ = 500400.

The previous prime is 1138237. The next prime is 1138273. The reversal of 1138258 is 8528311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153 + ... + 1516.

It is an arithmetic number, because the mean of its divisors is an integer number (120240).

2^1138258 is an apocalyptic number.

1138258 is a deficient number, since it is larger than the sum of its proper divisors (785582).

1138258 is a wasteful number, since it uses less digits than its factorization.

1138258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713.

The product of its digits is 1920, while the sum is 28.

The square root of 1138258 is about 1066.8917470859. The cubic root of 1138258 is about 104.4111559156.

The spelling of 1138258 in words is "one million, one hundred thirty-eight thousand, two hundred fifty-eight".