109549387 has 4 divisors (see below), whose sum is σ = 110123136. Its totient is φ = 108975640.

The previous prime is 109549369. The next prime is 109549399. The reversal of 109549387 is 783945901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783945901 = 1973 ⋅397337.

It is a cyclic number.

It is not a de Polignac number, because 109549387 - 2⁷ = 109549259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109549787) 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, 286588 + ... + 286969.

It is an arithmetic number, because the mean of its divisors is an integer number (27530784).

Almost surely, 2^109549387 is an apocalyptic number.

109549387 is a deficient number, since it is larger than the sum of its proper divisors (573749).

109549387 is an equidigital number, since it uses as much as digits as its factorization.

109549387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573748.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 109549387 is about 10466.5843043469. The cubic root of 109549387 is about 478.4868247944.

The spelling of 109549387 in words is "one hundred nine million, five hundred forty-nine thousand, three hundred eighty-seven".