106138755 has 56 divisors (see below), whose sum is σ = 196372752. Its totient is φ = 55007424.

The previous prime is 106138733. The next prime is 106138759. The reversal of 106138755 is 557831601.

It is not a de Polignac number, because 106138755 - 2⁶ = 106138691 is a prime.

It is a super-2 number, since 2×106138755² = 22530870625900050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106138759) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 134472 + ... + 135258.

Almost surely, 2^106138755 is an apocalyptic number.

106138755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106138755 is a deficient number, since it is larger than the sum of its proper divisors (90233997).

106138755 is an frugal number, since it uses more digits than its factorization.

106138755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 106138755 is about 10302.3664757181. The cubic root of 106138755 is about 473.4687607042.

The spelling of 106138755 in words is "one hundred six million, one hundred thirty-eight thousand, seven hundred fifty-five".