109287745 has 16 divisors (see below), whose sum is σ = 150053760. Its totient is φ = 74853504.

The previous prime is 109287727. The next prime is 109287799. The reversal of 109287745 is 547782901.

It is a cyclic number.

It is not a de Polignac number, because 109287745 - 2¹¹ = 109285697 is a prime.

It is a super-2 number, since 2×109287745² = 23887622414370050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49066 + ... + 51244.

It is an arithmetic number, because the mean of its divisors is an integer number (9378360).

Almost surely, 2^109287745 is an apocalyptic number.

It is an amenable number.

109287745 is a deficient number, since it is larger than the sum of its proper divisors (40766015).

109287745 is a wasteful number, since it uses less digits than its factorization.

109287745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3624.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 109287745 is about 10454.0779124703. The cubic root of 109287745 is about 478.1055901956.

The spelling of 109287745 in words is "one hundred nine million, two hundred eighty-seven thousand, seven hundred forty-five".