107208945 has 24 divisors (see below), whose sum is σ = 186077736. Its totient is φ = 57101568.

The previous prime is 107208901. The next prime is 107208949. The reversal of 107208945 is 549802701.

It can be written as a sum of positive squares in 4 ways, for example, as 24336 + 107184609 = 156^2 + 10353^2 .

It is not a de Polignac number, because 107208945 - 2¹⁹ = 106684657 is a prime.

It is a super-2 number, since 2×107208945² = 22987515776026050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (107208949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52687 + ... + 54683.

It is an arithmetic number, because the mean of its divisors is an integer number (7753239).

Almost surely, 2^107208945 is an apocalyptic number.

107208945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

107208945 is a deficient number, since it is larger than the sum of its proper divisors (78868791).

107208945 is a wasteful number, since it uses less digits than its factorization.

107208945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201 (or 3198 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 107208945 is about 10354.1752447986. The cubic root of 107208945 is about 475.0547600764.

The spelling of 107208945 in words is "one hundred seven million, two hundred eight thousand, nine hundred forty-five".