106943391 has 12 divisors (see below), whose sum is σ = 154636768. Its totient is φ = 71220384.

The previous prime is 106943363. The next prime is 106943407. The reversal of 106943391 is 193349601.

It is not a de Polignac number, because 106943391 - 2⁵ = 106943359 is a prime.

It is a super-2 number, since 2×106943391² = 22873777757157762, 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 (106943351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3546 + ... + 15048.

Almost surely, 2^106943391 is an apocalyptic number.

106943391 is a deficient number, since it is larger than the sum of its proper divisors (47693377).

106943391 is a wasteful number, since it uses less digits than its factorization.

106943391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12542 (or 12539 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 106943391 is about 10341.3437714835. The cubic root of 106943391 is about 474.6622026756.

It can be divided in two parts, 10 and 6943391, that added together give a triangular number (6943401 = T₃₇₂₆).

The spelling of 106943391 in words is "one hundred six million, nine hundred forty-three thousand, three hundred ninety-one".