106478239 has 4 divisors (see below), whose sum is σ = 121689424. Its totient is φ = 91267056.

The previous prime is 106478237. The next prime is 106478243. The reversal of 106478239 is 932874601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932874601 = 5209 ⋅179089.

It is a cyclic number.

It is not a de Polignac number, because 106478239 - 2¹ = 106478237 is a prime.

It is a super-2 number, since 2×106478239² = 22675230761082242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106478233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7605582 + ... + 7605595.

It is an arithmetic number, because the mean of its divisors is an integer number (30422356).

Almost surely, 2^106478239 is an apocalyptic number.

106478239 is a deficient number, since it is larger than the sum of its proper divisors (15211185).

106478239 is an equidigital number, since it uses as much as digits as its factorization.

106478239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15211184.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 106478239 is about 10318.8293425175. The cubic root of 106478239 is about 473.9730188729.

The spelling of 106478239 in words is "one hundred six million, four hundred seventy-eight thousand, two hundred thirty-nine".