106138390 has 16 divisors (see below), whose sum is σ = 191894832. Its totient is φ = 42267424.

The previous prime is 106138369. The next prime is 106138393. The reversal of 106138390 is 93831601.

It is a super-2 number, since 2×106138390² = 22530715663584200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106138393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21109 + ... + 25648.

It is an arithmetic number, because the mean of its divisors is an integer number (11993427).

Almost surely, 2^106138390 is an apocalyptic number.

106138390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106138390 is a deficient number, since it is larger than the sum of its proper divisors (85756442).

106138390 is a wasteful number, since it uses less digits than its factorization.

106138390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46991.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 106138390 is about 10302.3487613262. The cubic root of 106138390 is about 473.4682179672.

Adding to 106138390 its reverse (93831601), we get a palindrome (199969991).

The spelling of 106138390 in words is "one hundred six million, one hundred thirty-eight thousand, three hundred ninety".