109443429 has 6 divisors (see below), whose sum is σ = 158084966. Its totient is φ = 72962280.

The previous prime is 109443427. The next prime is 109443431. The reversal of 109443429 is 924344901.

It is an interprime number because it is at equal distance from previous prime (109443427) and next prime (109443431).

It can be written as a sum of positive squares in only one way, i.e., 75220929 + 34222500 = 8673^2 + 5850^2 .

It is not a de Polignac number, because 109443429 - 2¹ = 109443427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109443393 and 109443402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109443421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6080182 + ... + 6080199.

Almost surely, 2^109443429 is an apocalyptic number.

It is an amenable number.

109443429 is a deficient number, since it is larger than the sum of its proper divisors (48641537).

109443429 is a wasteful number, since it uses less digits than its factorization.

109443429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12160387 (or 12160384 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 109443429 is about 10461.5213520788. The cubic root of 109443429 is about 478.3325082103.

The spelling of 109443429 in words is "one hundred nine million, four hundred forty-three thousand, four hundred twenty-nine".