109146538 has 8 divisors (see below), whose sum is σ = 163869732. Its totient is φ = 54523296.

The previous prime is 109146533. The next prime is 109146539. The reversal of 109146538 is 835641901.

It can be written as a sum of positive squares in 2 ways, for example, as 108305649 + 840889 = 10407^2 + 917^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 109146497 and 109146506.

It is not an unprimeable number, because it can be changed into a prime (109146533) 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, 22195 + ... + 26662.

Almost surely, 2^109146538 is an apocalyptic number.

109146538 is a deficient number, since it is larger than the sum of its proper divisors (54723194).

109146538 is a wasteful number, since it uses less digits than its factorization.

109146538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49976.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 109146538 is about 10447.3220492143. The cubic root of 109146538 is about 477.8995867577.

It can be divided in two parts, 1091465 and 38, that added together give a triangular number (1091503 = T₁₄₇₇).

The spelling of 109146538 in words is "one hundred nine million, one hundred forty-six thousand, five hundred thirty-eight".