106865139 has 16 divisors (see below), whose sum is σ = 154042880. Its totient is φ = 65668320.

The previous prime is 106865089. The next prime is 106865159. The reversal of 106865139 is 931568601.

It is not a de Polignac number, because 106865139 - 2¹² = 106861043 is a prime.

It is a super-2 number, since 2×106865139² = 22840315866978642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106865097 and 106865106.

It is not an unprimeable number, because it can be changed into a prime (106865159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23227 + ... + 27444.

It is an arithmetic number, because the mean of its divisors is an integer number (9627680).

Almost surely, 2^106865139 is an apocalyptic number.

106865139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

106865139 is a deficient number, since it is larger than the sum of its proper divisors (47177741).

106865139 is a wasteful number, since it uses less digits than its factorization.

106865139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50730.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 106865139 is about 10337.5596249792. The cubic root of 106865139 is about 474.5464020654.

The spelling of 106865139 in words is "one hundred six million, eight hundred sixty-five thousand, one hundred thirty-nine".