108730431 has 20 divisors (see below), whose sum is σ = 162705312. Its totient is φ = 72361728.

The previous prime is 108730429. The next prime is 108730463. The reversal of 108730431 is 134037801.

It is not a de Polignac number, because 108730431 - 2¹ = 108730429 is a prime.

It is a super-3 number, since 3×108730431³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 108730395 and 108730404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108730471) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 88735 + ... + 89951.

Almost surely, 2^108730431 is an apocalyptic number.

108730431 is a deficient number, since it is larger than the sum of its proper divisors (53974881).

108730431 is a wasteful number, since it uses less digits than its factorization.

108730431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2323 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 108730431 is about 10427.3885033598. The cubic root of 108730431 is about 477.2915033207.

The spelling of 108730431 in words is "one hundred eight million, seven hundred thirty thousand, four hundred thirty-one".