1358689138 has 8 divisors (see below), whose sum is σ = 2052696240. Its totient is φ = 674457060.

The previous prime is 1358689133. The next prime is 1358689139. The reversal of 1358689138 is 8319868531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1358689133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443408 + ... + 2443963.

It is an arithmetic number, because the mean of its divisors is an integer number (256587030).

Almost surely, 2^1358689138 is an apocalyptic number.

1358689138 is a deficient number, since it is larger than the sum of its proper divisors (694007102).

1358689138 is a wasteful number, since it uses less digits than its factorization.

1358689138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887512.

The product of its digits is 1244160, while the sum is 52.

The square root of 1358689138 is about 36860.4006760643. The cubic root of 1358689138 is about 1107.5755698867.

The spelling of 1358689138 in words is "one billion, three hundred fifty-eight million, six hundred eighty-nine thousand, one hundred thirty-eight".