1338136158 has 16 divisors (see below), whose sum is σ = 2679590160. Its totient is φ = 445492416.

The previous prime is 1338136157. The next prime is 1338136223. The reversal of 1338136158 is 8516318331.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338136157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132985 + ... + 142692.

It is an arithmetic number, because the mean of its divisors is an integer number (167474385).

Almost surely, 2^1338136158 is an apocalyptic number.

1338136158 is an abundant number, since it is smaller than the sum of its proper divisors (1341454002).

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

1338136158 is a wasteful number, since it uses less digits than its factorization.

1338136158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276491.

The product of its digits is 51840, while the sum is 39.

The square root of 1338136158 is about 36580.5434350011. The cubic root of 1338136158 is about 1101.9623808116.

The spelling of 1338136158 in words is "one billion, three hundred thirty-eight million, one hundred thirty-six thousand, one hundred fifty-eight".