109429559 has 4 divisors (see below), whose sum is σ = 111062904. Its totient is φ = 107796216.

The previous prime is 109429553. The next prime is 109429571. The reversal of 109429559 is 955924901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955924901 = 71 ⋅13463731.

It is a cyclic number.

It is not a de Polignac number, because 109429559 - 2⁴ = 109429543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109429553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816572 + ... + 816705.

It is an arithmetic number, because the mean of its divisors is an integer number (27765726).

Almost surely, 2^109429559 is an apocalyptic number.

109429559 is a deficient number, since it is larger than the sum of its proper divisors (1633345).

109429559 is an equidigital number, since it uses as much as digits as its factorization.

109429559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633344.

The product of its (nonzero) digits is 145800, while the sum is 44.

The square root of 109429559 is about 10460.8584255787. The cubic root of 109429559 is about 478.3123006557.

The spelling of 109429559 in words is "one hundred nine million, four hundred twenty-nine thousand, five hundred fifty-nine".