109509351 has 16 divisors (see below), whose sum is σ = 168526848. Its totient is φ = 61956000.

The previous prime is 109509299. The next prime is 109509409. The reversal of 109509351 is 153905901.

It is not a de Polignac number, because 109509351 - 2¹⁰ = 109508327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109509151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23695 + ... + 27936.

It is an arithmetic number, because the mean of its divisors is an integer number (10532928).

Almost surely, 2^109509351 is an apocalyptic number.

109509351 is a deficient number, since it is larger than the sum of its proper divisors (59017497).

109509351 is a wasteful number, since it uses less digits than its factorization.

109509351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51742.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 109509351 is about 10464.6715667526. The cubic root of 109509351 is about 478.4285283091.

It can be divided in two parts, 10950 and 9351, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 109509351 in words is "one hundred nine million, five hundred nine thousand, three hundred fifty-one".