106939509 has 8 divisors (see below), whose sum is σ = 146439840. Its totient is φ = 69366096.

The previous prime is 106939477. The next prime is 106939513. The reversal of 106939509 is 905939601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 106939509 - 2⁵ = 106939477 is a prime.

It is a super-2 number, since 2×106939509² = 22872117170322162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106939549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481599 + ... + 481820.

It is an arithmetic number, because the mean of its divisors is an integer number (18304980).

Almost surely, 2^106939509 is an apocalyptic number.

It is an amenable number.

106939509 is a deficient number, since it is larger than the sum of its proper divisors (39500331).

106939509 is an equidigital number, since it uses as much as digits as its factorization.

106939509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963459.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 106939509 is about 10341.1560765709. The cubic root of 106939509 is about 474.6564592601.

It can be divided in two parts, 10693 and 9509, that added together give a palindrome (20202).

The spelling of 106939509 in words is "one hundred six million, nine hundred thirty-nine thousand, five hundred nine".