109453139 has 4 divisors (see below), whose sum is σ = 109577424. Its totient is φ = 109328856.

The previous prime is 109453133. The next prime is 109453181. The reversal of 109453139 is 931354901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931354901 = 19 ⋅49018679.

It is a cyclic number.

It is not a de Polignac number, because 109453139 - 2²⁴ = 92675923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109453099 and 109453108.

It is not an unprimeable number, because it can be changed into a prime (109453133) 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, 60812 + ... + 62585.

It is an arithmetic number, because the mean of its divisors is an integer number (27394356).

Almost surely, 2^109453139 is an apocalyptic number.

109453139 is a deficient number, since it is larger than the sum of its proper divisors (124285).

109453139 is an equidigital number, since it uses as much as digits as its factorization.

109453139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124284.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 109453139 is about 10461.9854234270. The cubic root of 109453139 is about 478.3466539394.

The spelling of 109453139 in words is "one hundred nine million, four hundred fifty-three thousand, one hundred thirty-nine".