109156743 has 12 divisors (see below), whose sum is σ = 158362360. Its totient is φ = 72452016.

The previous prime is 109156739. The next prime is 109156753. The reversal of 109156743 is 347651901.

109156743 is a `hidden beast` number, since 1 + 0 + 91 + 567 + 4 + 3 = 666.

It is not a de Polignac number, because 109156743 - 2² = 109156739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109156698 and 109156707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109156753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24421 + ... + 28542.

Almost surely, 2^109156743 is an apocalyptic number.

109156743 is a deficient number, since it is larger than the sum of its proper divisors (49205617).

109156743 is a wasteful number, since it uses less digits than its factorization.

109156743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53198 (or 53195 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 109156743 is about 10447.8104404703. The cubic root of 109156743 is about 477.9144805369.

The spelling of 109156743 in words is "one hundred nine million, one hundred fifty-six thousand, seven hundred forty-three".