107820137 has 4 divisors (see below), whose sum is σ = 114162516. Its totient is φ = 101477760.

The previous prime is 107820127. The next prime is 107820143. The reversal of 107820137 is 731028701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71048041 + 36772096 = 8429^2 + 6064^2 .

It is not a de Polignac number, because 107820137 - 2⁴ = 107820121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107820107) 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, 3171164 + ... + 3171197.

It is an arithmetic number, because the mean of its divisors is an integer number (28540629).

Almost surely, 2^107820137 is an apocalyptic number.

107820137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

107820137 is a deficient number, since it is larger than the sum of its proper divisors (6342379).

107820137 is an equidigital number, since it uses as much as digits as its factorization.

107820137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342378.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 107820137 is about 10383.6475768393. The cubic root of 107820137 is about 475.9558032194.

Adding to 107820137 its reverse (731028701), we get a palindrome (838848838).

The spelling of 107820137 in words is "one hundred seven million, eight hundred twenty thousand, one hundred thirty-seven".