109887345 has 12 divisors (see below), whose sum is σ = 190471476. Its totient is φ = 58606560.

The previous prime is 109887331. The next prime is 109887383. The reversal of 109887345 is 543788901.

It can be written as a sum of positive squares in 2 ways, for example, as 56655729 + 53231616 = 7527^2 + 7296^2 .

It is not a de Polignac number, because 109887345 - 2⁵ = 109887313 is a prime.

It is a super-2 number, since 2×109887345² = 24150457182298050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2441941 = 109887345 / (1 + 0 + 9 + 8 + 8 + 7 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 109887345.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1220926 + ... + 1221015.

It is an arithmetic number, because the mean of its divisors is an integer number (15872623).

Almost surely, 2^109887345 is an apocalyptic number.

109887345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109887345 is a deficient number, since it is larger than the sum of its proper divisors (80584131).

109887345 is a wasteful number, since it uses less digits than its factorization.

109887345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441952 (or 2441949 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 109887345 is about 10482.7164895365. The cubic root of 109887345 is about 478.9783609252.

The spelling of 109887345 in words is "one hundred nine million, eight hundred eighty-seven thousand, three hundred forty-five".