109251084345 has 32 divisors (see below), whose sum is σ = 188286989184. Its totient is φ = 53774016000.

The previous prime is 109251084343. The next prime is 109251084367. The reversal of 109251084345 is 543480152901.

It is not a de Polignac number, because 109251084345 - 2¹ = 109251084343 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109251084297 and 109251084306.

It is not an unprimeable number, because it can be changed into a prime (109251084343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 929485 + ... + 1040405.

It is an arithmetic number, because the mean of its divisors is an integer number (5883968412).

Almost surely, 2^109251084345 is an apocalyptic number.

109251084345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109251084345 is a deficient number, since it is larger than the sum of its proper divisors (79035904839).

109251084345 is a wasteful number, since it uses less digits than its factorization.

109251084345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115993.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 109251084345 in words is "one hundred nine billion, two hundred fifty-one million, eighty-four thousand, three hundred forty-five".