107121345 has 16 divisors (see below), whose sum is σ = 171811392. Its totient is φ = 56992320.

The previous prime is 107121317. The next prime is 107121349. The reversal of 107121345 is 543121701.

It is not a de Polignac number, because 107121345 - 2⁹ = 107120833 is a prime.

It is a super-2 number, since 2×107121345² = 22949965109218050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (107121349) by changing a digit.

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, 2167 + ... + 14796.

It is an arithmetic number, because the mean of its divisors is an integer number (10738212).

Almost surely, 2^107121345 is an apocalyptic number.

107121345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

107121345 is a deficient number, since it is larger than the sum of its proper divisors (64690047).

107121345 is a wasteful number, since it uses less digits than its factorization.

107121345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17392.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 107121345 is about 10349.9442027481. The cubic root of 107121345 is about 474.9253363716.

The spelling of 107121345 in words is "one hundred seven million, one hundred twenty-one thousand, three hundred forty-five".