108155730 has 32 divisors (see below), whose sum is σ = 261238464. Its totient is φ = 28656576.

The previous prime is 108155711. The next prime is 108155731. The reversal of 108155730 is 37551801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (108155731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6772 + ... + 16191.

It is an arithmetic number, because the mean of its divisors is an integer number (8163702).

Almost surely, 2^108155730 is an apocalyptic number.

108155730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108155730 is an abundant number, since it is smaller than the sum of its proper divisors (153082734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108155730 is a wasteful number, since it uses less digits than its factorization.

108155730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23130.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 108155730 is about 10399.7947095123. The cubic root of 108155730 is about 476.4491000736.

The spelling of 108155730 in words is "one hundred eight million, one hundred fifty-five thousand, seven hundred thirty".