109129830 has 32 divisors (see below), whose sum is σ = 263983104. Its totient is φ = 28871136.

The previous prime is 109129799. The next prime is 109129837. The reversal of 109129830 is 38921901.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109129791 and 109129800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109129837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10512 + ... + 18131.

It is an arithmetic number, because the mean of its divisors is an integer number (8249472).

Almost surely, 2^109129830 is an apocalyptic number.

109129830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109129830 is an abundant number, since it is smaller than the sum of its proper divisors (154853274).

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

109129830 is a wasteful number, since it uses less digits than its factorization.

109129830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28780.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 109129830 is about 10446.5223878571. The cubic root of 109129830 is about 477.8752001123.

The spelling of 109129830 in words is "one hundred nine million, one hundred twenty-nine thousand, eight hundred thirty".