107784145 has 16 divisors (see below), whose sum is σ = 151815168. Its totient is φ = 71910720.

The previous prime is 107784143. The next prime is 107784167. The reversal of 107784145 is 541487701.

It is not a de Polignac number, because 107784145 - 2¹ = 107784143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107784143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40321 + ... + 42910.

It is an arithmetic number, because the mean of its divisors is an integer number (9488448).

Almost surely, 2^107784145 is an apocalyptic number.

It is an amenable number.

107784145 is a deficient number, since it is larger than the sum of its proper divisors (44031023).

107784145 is an equidigital number, since it uses as much as digits as its factorization.

107784145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83280.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 107784145 is about 10381.9143225130. The cubic root of 107784145 is about 475.9028368989.

The spelling of 107784145 in words is "one hundred seven million, seven hundred eighty-four thousand, one hundred forty-five".