106981138 has 16 divisors (see below), whose sum is σ = 176139936. Its totient is φ = 48327840.

The previous prime is 106981123. The next prime is 106981139. The reversal of 106981138 is 831189601.

It is a super-2 number, since 2×106981138² = 22889927775550088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106981097 and 106981106.

It is not an unprimeable number, because it can be changed into a prime (106981139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11331 + ... + 18502.

It is an arithmetic number, because the mean of its divisors is an integer number (11008746).

Almost surely, 2^106981138 is an apocalyptic number.

106981138 is a deficient number, since it is larger than the sum of its proper divisors (69158798).

106981138 is a wasteful number, since it uses less digits than its factorization.

106981138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30009.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 106981138 is about 10343.1686634222. The cubic root of 106981138 is about 474.7180420824.

The spelling of 106981138 in words is "one hundred six million, nine hundred eighty-one thousand, one hundred thirty-eight".