108213730 has 8 divisors (see below), whose sum is σ = 194784732. Its totient is φ = 43285488.

The previous prime is 108213713. The next prime is 108213737. The reversal of 108213730 is 37312801.

It can be written as a sum of positive squares in 2 ways, for example, as 108139201 + 74529 = 10399^2 + 273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×108213730² = 23420422721025800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 108213695 and 108213704.

It is not an unprimeable number, because it can be changed into a prime (108213737) 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, 5410677 + ... + 5410696.

Almost surely, 2^108213730 is an apocalyptic number.

108213730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108213730 is a deficient number, since it is larger than the sum of its proper divisors (86571002).

108213730 is a wasteful number, since it uses less digits than its factorization.

108213730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10821380.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 108213730 is about 10402.5828523497. The cubic root of 108213730 is about 476.5342523183.

The spelling of 108213730 in words is "one hundred eight million, two hundred thirteen thousand, seven hundred thirty".