107637121 has 4 divisors (see below), whose sum is σ = 107666644. Its totient is φ = 107607600.

The previous prime is 107637091. The next prime is 107637157. The reversal of 107637121 is 121736701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121736701 = 157 ⋅775393.

It can be written as a sum of positive squares in 2 ways, for example, as 63600625 + 44036496 = 7975^2 + 6636^2 .

It is a cyclic number.

It is not a de Polignac number, because 107637121 - 2⁷ = 107636993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 107637121.

It is not an unprimeable number, because it can be changed into a prime (107638121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8370 + ... + 16891.

It is an arithmetic number, because the mean of its divisors is an integer number (26916661).

Almost surely, 2^107637121 is an apocalyptic number.

It is an amenable number.

107637121 is a deficient number, since it is larger than the sum of its proper divisors (29523).

107637121 is an equidigital number, since it uses as much as digits as its factorization.

107637121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29522.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 107637121 is about 10374.8311311558. The cubic root of 107637121 is about 475.6863518218.

The spelling of 107637121 in words is "one hundred seven million, six hundred thirty-seven thousand, one hundred twenty-one".