109855140 has 48 divisors (see below), whose sum is σ = 308363328. Its totient is φ = 29221504.

The previous prime is 109855133. The next prime is 109855147. The reversal of 109855140 is 41558901.

It is an interprime number because it is at equal distance from previous prime (109855133) and next prime (109855147).

It is not an unprimeable number, because it can be changed into a prime (109855147) 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, 24514 + ... + 28646.

It is an arithmetic number, because the mean of its divisors is an integer number (6424236).

Almost surely, 2^109855140 is an apocalyptic number.

109855140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109855140 is an abundant number, since it is smaller than the sum of its proper divisors (198508188).

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

109855140 is a wasteful number, since it uses less digits than its factorization.

109855140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588 (or 4586 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 109855140 is about 10481.1802770490. The cubic root of 109855140 is about 478.9315644984.

The spelling of 109855140 in words is "one hundred nine million, eight hundred fifty-five thousand, one hundred forty".