106388613 has 8 divisors (see below), whose sum is σ = 157612800. Its totient is φ = 70925724.

The previous prime is 106388587. The next prime is 106388627. The reversal of 106388613 is 316883601.

106388613 is a `hidden beast` number, since 1 + 0 + 6 + 38 + 8 + 613 = 666.

It is not a de Polignac number, because 106388613 - 2⁶ = 106388549 is a prime.

It is a super-2 number, since 2×106388613² = 22637073952127538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106388663) 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, 1970133 + ... + 1970186.

It is an arithmetic number, because the mean of its divisors is an integer number (19701600).

Almost surely, 2^106388613 is an apocalyptic number.

It is an amenable number.

106388613 is a deficient number, since it is larger than the sum of its proper divisors (51224187).

106388613 is an equidigital number, since it uses as much as digits as its factorization.

106388613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940328 (or 3940322 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 106388613 is about 10314.4855906633. The cubic root of 106388613 is about 473.8399956662.

It can be divided in two parts, 1063 and 88613, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 106388613 in words is "one hundred six million, three hundred eighty-eight thousand, six hundred thirteen".