109139804 has 6 divisors (see below), whose sum is σ = 190994664. Its totient is φ = 54569900.

The previous prime is 109139803. The next prime is 109139837. The reversal of 109139804 is 408931901.

It is a super-2 number, since 2×109139804² = 23822993634316832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109139801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13642472 + ... + 13642479.

It is an arithmetic number, because the mean of its divisors is an integer number (31832444).

Almost surely, 2^109139804 is an apocalyptic number.

It is an amenable number.

109139804 is a deficient number, since it is larger than the sum of its proper divisors (81854860).

109139804 is a wasteful number, since it uses less digits than its factorization.

109139804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27284955 (or 27284953 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 109139804 is about 10446.9997606968. Note that the first 3 decimals coincide. The cubic root of 109139804 is about 477.8897582523.

The spelling of 109139804 in words is "one hundred nine million, one hundred thirty-nine thousand, eight hundred four".