106139406 has 32 divisors (see below), whose sum is σ = 218873088. Its totient is φ = 34292160.

The previous prime is 106139389. The next prime is 106139419. The reversal of 106139406 is 604931601.

It is a super-2 number, since 2×106139406² = 22531147012065672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38775 + ... + 41421.

It is an arithmetic number, because the mean of its divisors is an integer number (6839784).

Almost surely, 2^106139406 is an apocalyptic number.

106139406 is an abundant number, since it is smaller than the sum of its proper divisors (112733682).

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

106139406 is a wasteful number, since it uses less digits than its factorization.

106139406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 106139406 is about 10302.3980703524. The cubic root of 106139406 is about 473.4697287060.

The spelling of 106139406 in words is "one hundred six million, one hundred thirty-nine thousand, four hundred six".