109842681 has 32 divisors (see below), whose sum is σ = 161824768. Its totient is φ = 65862720.

The previous prime is 109842671. The next prime is 109842701. The reversal of 109842681 is 186248901.

It is not a de Polignac number, because 109842681 - 2⁶ = 109842617 is a prime.

It is a super-2 number, since 2×109842681² = 24130829138535522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109842611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331686 + ... + 332016.

It is an arithmetic number, because the mean of its divisors is an integer number (5057024).

Almost surely, 2^109842681 is an apocalyptic number.

It is an amenable number.

109842681 is a deficient number, since it is larger than the sum of its proper divisors (51982087).

109842681 is a wasteful number, since it uses less digits than its factorization.

109842681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 109842681 is about 10480.5859091942. The cubic root of 109842681 is about 478.9134581268.

The spelling of 109842681 in words is "one hundred nine million, eight hundred forty-two thousand, six hundred eighty-one".