109126639 has 8 divisors (see below), whose sum is σ = 109984032. Its totient is φ = 108272640.

The previous prime is 109126637. The next prime is 109126679. The reversal of 109126639 is 936621901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109126639 - 2¹ = 109126637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109126598 and 109126607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109126637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143019 + ... + 143779.

It is an arithmetic number, because the mean of its divisors is an integer number (13748004).

Almost surely, 2^109126639 is an apocalyptic number.

109126639 is a deficient number, since it is larger than the sum of its proper divisors (857393).

109126639 is an equidigital number, since it uses as much as digits as its factorization.

109126639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 109126639 is about 10446.3696564883. The cubic root of 109126639 is about 477.8705423127.

It can be divided in two parts, 1091 and 26639, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 109126639 in words is "one hundred nine million, one hundred twenty-six thousand, six hundred thirty-nine".