107731985 has 16 divisors (see below), whose sum is σ = 132844800. Its totient is φ = 83870640.

The previous prime is 107731979. The next prime is 107731993. The reversal of 107731985 is 589137701.

It is not a de Polignac number, because 107731985 - 2¹² = 107727889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397400 + ... + 397670.

It is an arithmetic number, because the mean of its divisors is an integer number (8302800).

Almost surely, 2^107731985 is an apocalyptic number.

It is an amenable number.

107731985 is a deficient number, since it is larger than the sum of its proper divisors (25112815).

107731985 is an frugal number, since it uses more digits than its factorization.

107731985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 107731985 is about 10379.4019577238. The cubic root of 107731985 is about 475.8260565980.

The spelling of 107731985 in words is "one hundred seven million, seven hundred thirty-one thousand, nine hundred eighty-five".